102211230 has 32 divisors (see below), whose sum is σ = 267608448. Its totient is φ = 24778400.

The previous prime is 102211217. The next prime is 102211231. The reversal of 102211230 is 32112201.

It is a super-2 number, since 2×102211230² = 20894271076225800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154536 + ... + 155195.

It is an arithmetic number, because the mean of its divisors is an integer number (8362764).

Almost surely, 2^102211230 is an apocalyptic number.

102211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102211230 is an abundant number, since it is smaller than the sum of its proper divisors (165397218).

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

102211230 is a wasteful number, since it uses less digits than its factorization.

102211230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309752.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102211230 is about 10109.9569732022. The cubic root of 102211230 is about 467.5551785558. Note that the first 3 decimals are identical.

Adding to 102211230 its reverse (32112201), we get a palindrome (134323431).

The spelling of 102211230 in words is "one hundred two million, two hundred eleven thousand, two hundred thirty".