111010102210 has 48 divisors (see below), whose sum is σ = 232978822776. Its totient is φ = 37972634112.

The previous prime is 111010102141. The next prime is 111010102267. The reversal of 111010102210 is 12201010111.

It can be written as a sum of positive squares in 4 ways, for example, as 99803550889 + 11206551321 = 315917^2 + 105861^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49437 + ... + 473776.

Almost surely, 2^111010102210 is an apocalyptic number.

111010102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111010102210 is an abundant number, since it is smaller than the sum of its proper divisors (121968720566).

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

111010102210 is a wasteful number, since it uses less digits than its factorization.

111010102210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523667 (or 523660 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111010102210 its reverse (12201010111), we get a palindrome (123211112321).

The spelling of 111010102210 in words is "one hundred eleven billion, ten million, one hundred two thousand, two hundred ten".