101211012210 has 128 divisors (see below), whose sum is σ = 309887576064. Its totient is φ = 20541749760.

The previous prime is 101211012179. The next prime is 101211012211. The reversal of 101211012210 is 12210112101.

It is not an unprimeable number, because it can be changed into a prime (101211012211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 410139 + ... + 608798.

It is an arithmetic number, because the mean of its divisors is an integer number (2420996688).

Almost surely, 2^101211012210 is an apocalyptic number.

101211012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101211012210 is an abundant number, since it is smaller than the sum of its proper divisors (208676563854).

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

101211012210 is a wasteful number, since it uses less digits than its factorization.

101211012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019008.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101211012210 its reverse (12210112101), we get a palindrome (113421124311).

The spelling of 101211012210 in words is "one hundred one billion, two hundred eleven million, twelve thousand, two hundred ten".