22121001020010 has 64 divisors (see below), whose sum is σ = 53686011503232. Its totient is φ = 5833089908736.

The previous prime is 22121001020003. The next prime is 22121001020011. The reversal of 22121001020010 is 1002010012122.

It is a super-2 number, since 2×22121001020010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22121001020011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9415012 + ... + 11527551.

It is an arithmetic number, because the mean of its divisors is an integer number (838843929738).

Almost surely, 2^{22121001020010} is an apocalyptic number.

22121001020010 is an abundant number, since it is smaller than the sum of its proper divisors (31565010483222).

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

22121001020010 is a wasteful number, since it uses less digits than its factorization.

22121001020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20942967.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22121001020010 its reverse (1002010012122), we get a palindrome (23123011032132).

The spelling of 22121001020010 in words is "twenty-two trillion, one hundred twenty-one billion, one million, twenty thousand, ten".