222020222121012 has 24 divisors (see below), whose sum is σ = 592053925656256. Its totient is φ = 63434349177408.

The previous prime is 222020222120971. The next prime is 222020222121013. The reversal of 222020222121012 is 210121222020222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 222020222121012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222020222121013) 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, 1321548941113 + ... + 1321548941280.

Almost surely, 2^{222020222121012} is an apocalyptic number.

It is an amenable number.

222020222121012 is an abundant number, since it is smaller than the sum of its proper divisors (370033703535244).

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

222020222121012 is a wasteful number, since it uses less digits than its factorization.

222020222121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643097882407 (or 2643097882405 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222020222121012 its reverse (210121222020222), we get a palindrome (432141444141234).

The spelling of 222020222121012 in words is "two hundred twenty-two trillion, twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, twelve".