101221021022212 has 24 divisors (see below), whose sum is σ = 218014506817856. Its totient is φ = 40043480843808.

The previous prime is 101221021022207. The next prime is 101221021022249. The reversal of 101221021022212 is 212220120122101.

It is a self number, because there is not a number n which added to its sum of digits gives 101221021022212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139039863678 + ... + 139039864405.

Almost surely, 2^{101221021022212} is an apocalyptic number.

It is an amenable number.

101221021022212 is an abundant number, since it is smaller than the sum of its proper divisors (116793485795644).

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

101221021022212 is a wasteful number, since it uses less digits than its factorization.

101221021022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278079728107 (or 278079728105 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101221021022212 its reverse (212220120122101), we get a palindrome (313441141144313).

The spelling of 101221021022212 in words is "one hundred one trillion, two hundred twenty-one billion, twenty-one million, twenty-two thousand, two hundred twelve".