111010101022210 has 48 divisors (see below), whose sum is σ = 217053727252776. Its totient is φ = 40859044022784.

The previous prime is 111010101022201. The next prime is 111010101022273. The reversal of 111010101022210 is 12220101010111.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 5411890364409 + 105598210657801 = 2326347^2 + 10276099^2 .

It is a super-2 number, since 2×111010101022210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 103070659 + ... + 104142118.

Almost surely, 2^{111010101022210} is an apocalyptic number.

111010101022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111010101022210 is a deficient number, since it is larger than the sum of its proper divisors (106043626230566).

111010101022210 is a wasteful number, since it uses less digits than its factorization.

111010101022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207213127 (or 207213114 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111010101022210 its reverse (12220101010111), we get a palindrome (123230202032321).

The spelling of 111010101022210 in words is "one hundred eleven trillion, ten billion, one hundred one million, twenty-two thousand, two hundred ten".