220021121022 has 32 divisors (see below), whose sum is σ = 442650230784. Its totient is φ = 72906237600.

The previous prime is 220021120993. The next prime is 220021121053. The reversal of 220021121022 is 220121120022.

It is a junction number, because it is equal to n+sod(n) for n = 220021120992 and 220021121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620508 + ... + 1751024.

It is an arithmetic number, because the mean of its divisors is an integer number (13832819712).

Almost surely, 2^220021121022 is an apocalyptic number.

220021121022 is an abundant number, since it is smaller than the sum of its proper divisors (222629109762).

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

220021121022 is a wasteful number, since it uses less digits than its factorization.

220021121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132184.

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

Adding to 220021121022 its reverse (220121120022), we get a palindrome (440142241044).

The spelling of 220021121022 in words is "two hundred twenty billion, twenty-one million, one hundred twenty-one thousand, twenty-two".