220021121021022 has 20 divisors (see below), whose sum is σ = 493010289695616. Its totient is φ = 73340373673620.

The previous prime is 220021121020991. The next prime is 220021121021027. The reversal of 220021121021022 is 220120121120022.

It is a happy number.

220021121021022 is a `hidden beast` number, since 2 + 200 + 21 + 1 + 210 + 210 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220021121020986 and 220021121021004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021121021027) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 679077533854 + ... + 679077534177.

Almost surely, 2^{220021121021022} is an apocalyptic number.

220021121021022 is an abundant number, since it is smaller than the sum of its proper divisors (272989168674594).

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

220021121021022 is a wasteful number, since it uses less digits than its factorization.

220021121021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358155068045 (or 1358155068036 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220021121021022 its reverse (220120121120022), we get a palindrome (440141242141044).

The spelling of 220021121021022 in words is "two hundred twenty trillion, twenty-one billion, one hundred twenty-one million, twenty-one thousand, twenty-two".