221020212201022 has 64 divisors (see below), whose sum is σ = 362158781624640. Its totient is φ = 100551868268544.

The previous prime is 221020212201013. The next prime is 221020212201031. The reversal of 221020212201022 is 220102212020122.

It is an interprime number because it is at equal distance from previous prime (221020212201013) and next prime (221020212201031).

It is a congruent number.

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, 12042720198 + ... + 12042738550.

It is an arithmetic number, because the mean of its divisors is an integer number (5658730962885).

Almost surely, 2^{221020212201022} is an apocalyptic number.

221020212201022 is a deficient number, since it is larger than the sum of its proper divisors (141138569423618).

221020212201022 is a wasteful number, since it uses less digits than its factorization.

221020212201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34237.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221020212201022 its reverse (220102212020122), we get a palindrome (441122424221144).

The spelling of 221020212201022 in words is "two hundred twenty-one trillion, twenty billion, two hundred twelve million, two hundred one thousand, twenty-two".