22121002212002 has 16 divisors (see below), whose sum is σ = 33217181021952. Its totient is φ = 11048612931360.

The previous prime is 22121002211999. The next prime is 22121002212053. The reversal of 22121002212002 is 20021220012122.

It is a happy number.

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, 8999543 + ... + 11190789.

It is an arithmetic number, because the mean of its divisors is an integer number (2076073813872).

Almost surely, 2^{22121002212002} is an apocalyptic number.

22121002212002 is a deficient number, since it is larger than the sum of its proper divisors (11096178809950).

22121002212002 is a wasteful number, since it uses less digits than its factorization.

22121002212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196673.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22121002212002 its reverse (20021220012122), we get a palindrome (42142222224124).

The spelling of 22121002212002 in words is "twenty-two trillion, one hundred twenty-one billion, two million, two hundred twelve thousand, two".