221020100210022 has 16 divisors (see below), whose sum is σ = 442073444183472. Its totient is φ = 73667826109440.

The previous prime is 221020100209949. The next prime is 221020100210023. The reversal of 221020100210022 is 220012001020122.

It is a junction number, because it is equal to n+sod(n) for n = 221020100209983 and 221020100210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020100210023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385070379 + ... + 1385229942.

It is an arithmetic number, because the mean of its divisors is an integer number (27629590261467).

Almost surely, 2^{221020100210022} is an apocalyptic number.

221020100210022 is an abundant number, since it is smaller than the sum of its proper divisors (221053343973450).

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

221020100210022 is a wasteful number, since it uses less digits than its factorization.

221020100210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770313623.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221020100210022 its reverse (220012001020122), we get a palindrome (441032101230144).

The spelling of 221020100210022 in words is "two hundred twenty-one trillion, twenty billion, one hundred million, two hundred ten thousand, twenty-two".