21122210222002 has 16 divisors (see below), whose sum is σ = 33353424691200. Its totient is φ = 10012529044672.

The previous prime is 21122210221999. The next prime is 21122210222027. The reversal of 21122210222002 is 20022201222112.

It is a super-2 number, since 2×21122210222002² (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 7 ways as a sum of consecutive naturals, for example, 2031758002 + ... + 2031768397.

It is an arithmetic number, because the mean of its divisors is an integer number (2084589043200).

Almost surely, 2^{21122210222002} is an apocalyptic number.

21122210222002 is a deficient number, since it is larger than the sum of its proper divisors (12231214469198).

21122210222002 is a wasteful number, since it uses less digits than its factorization.

21122210222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063526537.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21122210222002 its reverse (20022201222112), we get a palindrome (41144411444114).

The spelling of 21122210222002 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred ten million, two hundred twenty-two thousand, two".