101210111121210 has 128 divisors (see below), whose sum is σ = 301861613813760. Its totient is φ = 21146898652416.

The previous prime is 101210111121209. The next prime is 101210111121293. The reversal of 101210111121210 is 12121111012101.

It is a super-2 number, since 2×101210111121210² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 101210111121210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 179686290 + ... + 180248669.

It is an arithmetic number, because the mean of its divisors is an integer number (2358293857920).

Almost surely, 2^{101210111121210} is an apocalyptic number.

101210111121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101210111121210 is an abundant number, since it is smaller than the sum of its proper divisors (200651502692550).

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

101210111121210 is a wasteful number, since it uses less digits than its factorization.

101210111121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359935092.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 101210111121210 its reverse (12121111012101), we get a palindrome (113331222133311).

The spelling of 101210111121210 in words is "one hundred one trillion, two hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, two hundred ten".