101122212121210 has 64 divisors (see below), whose sum is σ = 219007852462080. Its totient is φ = 32840244141120.

The previous prime is 101122212121201. The next prime is 101122212121223. The reversal of 101122212121210 is 12121212221101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1670247 + ... + 14319013.

It is an arithmetic number, because the mean of its divisors is an integer number (3421997694720).

Almost surely, 2^{101122212121210} is an apocalyptic number.

101122212121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101122212121210 is an abundant number, since it is smaller than the sum of its proper divisors (117885640340870).

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

101122212121210 is a wasteful number, since it uses less digits than its factorization.

101122212121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12654811.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 101122212121210 its reverse (12121212221101), we get a palindrome (113243424342311).

The spelling of 101122212121210 in words is "one hundred one trillion, one hundred twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, two hundred ten".