101211220111210 has 32 divisors (see below), whose sum is σ = 198766214798400. Its totient is φ = 36799601784960.

The previous prime is 101211220111147. The next prime is 101211220111237. The reversal of 101211220111210 is 12111022112101.

It is a super-2 number, since 2×101211220111210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55069995 + ... + 56878174.

It is an arithmetic number, because the mean of its divisors is an integer number (6211444212450).

Almost surely, 2^{101211220111210} is an apocalyptic number.

101211220111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101211220111210 is a deficient number, since it is larger than the sum of its proper divisors (97554994687190).

101211220111210 is a wasteful number, since it uses less digits than its factorization.

101211220111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111956406.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 101211220111210 its reverse (12111022112101), we get a palindrome (113322242223311).

The spelling of 101211220111210 in words is "one hundred one trillion, two hundred eleven billion, two hundred twenty million, one hundred eleven thousand, two hundred ten".