101221222212210 has 32 divisors (see below), whose sum is σ = 246556768139712. Its totient is φ = 26589455386560.

The previous prime is 101221222212199. The next prime is 101221222212211. The reversal of 101221222212210 is 12212222122101.

It is a super-2 number, since 2×101221222212210² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101221222212211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25179406501 + ... + 25179410520.

It is an arithmetic number, because the mean of its divisors is an integer number (7704899004366).

Almost surely, 2^{101221222212210} is an apocalyptic number.

101221222212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101221222212210 is an abundant number, since it is smaller than the sum of its proper divisors (145335545927502).

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

101221222212210 is a wasteful number, since it uses less digits than its factorization.

101221222212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50358817098.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 101221222212210 its reverse (12212222122101), we get a palindrome (113433444334311).

The spelling of 101221222212210 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred ten".