101222397 has 24 divisors (see below), whose sum is σ = 148294848. Its totient is φ = 66528000.

The previous prime is 101222377. The next prime is 101222413. The reversal of 101222397 is 793222101.

It is not a de Polignac number, because 101222397 - 2⁸ = 101222141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101222397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286573 + ... + 286925.

It is an arithmetic number, because the mean of its divisors is an integer number (6178952).

Almost surely, 2^101222397 is an apocalyptic number.

It is an amenable number.

101222397 is a deficient number, since it is larger than the sum of its proper divisors (47072451).

101222397 is a wasteful number, since it uses less digits than its factorization.

101222397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 101222397 is about 10060.9342011565. The cubic root of 101222397 is about 466.0425170120.

Adding to 101222397 its reverse (793222101), we get a palindrome (894444498).

It can be divided in two parts, 1012 and 22397, that added together give a square (23409 = 153²).

The spelling of 101222397 in words is "one hundred one million, two hundred twenty-two thousand, three hundred ninety-seven".