22021001020120 has 32 divisors (see below), whose sum is σ = 49548080635200. Its totient is φ = 8808253147648.

The previous prime is 22021001020097. The next prime is 22021001020181. The reversal of 22021001020120 is 2102010012022.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021001020120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163424 + ... + 6980143.

It is an arithmetic number, because the mean of its divisors is an integer number (1548377519850).

Almost surely, 2^{22021001020120} is an apocalyptic number.

22021001020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021001020120 is an abundant number, since it is smaller than the sum of its proper divisors (27527079615080).

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

22021001020120 is a wasteful number, since it uses less digits than its factorization.

22021001020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9203787 (or 9203783 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22021001020120 its reverse (2102010012022), we get a palindrome (24123011032142).

The spelling of 22021001020120 in words is "twenty-two trillion, twenty-one billion, one million, twenty thousand, one hundred twenty".