22121022001210 has 64 divisors (see below), whose sum is σ = 45335340230400. Its totient is φ = 7692723118080.

The previous prime is 22121022001163. The next prime is 22121022001261. The reversal of 22121022001210 is 1210022012122.

It is a happy number.

It is a super-2 number, since 2×22121022001210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11756716 + ... + 13507864.

It is an arithmetic number, because the mean of its divisors is an integer number (708364691100).

Almost surely, 2^{22121022001210} is an apocalyptic number.

22121022001210 is an abundant number, since it is smaller than the sum of its proper divisors (23214318229190).

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

22121022001210 is a wasteful number, since it uses less digits than its factorization.

22121022001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756183.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22121022001210 its reverse (1210022012122), we get a palindrome (23331044013332).

The spelling of 22121022001210 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-two million, one thousand, two hundred ten".