22121002100010 has 64 divisors (see below), whose sum is σ = 57919474911744. Its totient is φ = 5362420008000.

The previous prime is 22121002099991. The next prime is 22121002100011. The reversal of 22121002100010 is 1000120012122.

It is a super-3 number, since 3×22121002100010³ (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22121002100011) 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, 5676957 + ... + 8744703.

It is an arithmetic number, because the mean of its divisors is an integer number (904991795496).

Almost surely, 2^{22121002100010} is an apocalyptic number.

22121002100010 is an abundant number, since it is smaller than the sum of its proper divisors (35798472811734).

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

22121002100010 is a wasteful number, since it uses less digits than its factorization.

22121002100010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089619.

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

Adding to 22121002100010 its reverse (1000120012122), we get a palindrome (23121122112132).

The spelling of 22121002100010 in words is "twenty-two trillion, one hundred twenty-one billion, two million, one hundred thousand, ten".