222012012020 has 12 divisors (see below), whose sum is σ = 466225225284. Its totient is φ = 88804804800.

The previous prime is 222012011993. The next prime is 222012012049. The reversal of 222012012020 is 20210210222.

It can be written as a sum of positive squares in 2 ways, for example, as 52618854544 + 169393157476 = 229388^2 + 411574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222012011986 and 222012012004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550300281 + ... + 5550300320.

It is an arithmetic number, because the mean of its divisors is an integer number (38852102107).

Almost surely, 2^222012012020 is an apocalyptic number.

222012012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012012020 is an abundant number, since it is smaller than the sum of its proper divisors (244213213264).

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

222012012020 is a wasteful number, since it uses less digits than its factorization.

222012012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100600610 (or 11100600608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 222012012020 its reverse (20210210222), we get a palindrome (242222222242).

The spelling of 222012012020 in words is "two hundred twenty-two billion, twelve million, twelve thousand, twenty".