101222200 has 48 divisors (see below), whose sum is σ = 237719160. Its totient is φ = 40080000.

The previous prime is 101222197. The next prime is 101222201. The reversal of 101222200 is 2222101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17695 + ... + 22705.

Almost surely, 2^101222200 is an apocalyptic number.

101222200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118859580).

101222200 is an abundant number, since it is smaller than the sum of its proper divisors (136496960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101222200 is a wasteful number, since it uses less digits than its factorization.

101222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128 (or 5119 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 101222200 is about 10060.9244108084. The cubic root of 101222200 is about 466.0422146730.

Adding to 101222200 its reverse (2222101), we get a palindrome (103444301).

Subtracting from 101222200 its reverse (2222101), we obtain a palindrome (99000099).

The spelling of 101222200 in words is "one hundred one million, two hundred twenty-two thousand, two hundred".