22121021002012 has 24 divisors (see below), whose sum is σ = 39630826109952. Its totient is φ = 10798171532400.

The previous prime is 22121021001953. The next prime is 22121021002037. The reversal of 22121021002012 is 21020012012122.

It is a happy number.

It is a super-3 number, since 3×22121021002012³ (a number of 41 digits) contains 333 as substring.

It is a congruent 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, 30098914 + ... + 30825097.

It is an arithmetic number, because the mean of its divisors is an integer number (1651284421248).

Almost surely, 2^{22121021002012} is an apocalyptic number.

It is an amenable number.

22121021002012 is a deficient number, since it is larger than the sum of its proper divisors (17509805107940).

22121021002012 is a wasteful number, since it uses less digits than its factorization.

22121021002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60926169 (or 60926167 counting only the distinct ones).

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

Adding to 22121021002012 its reverse (21020012012122), we get a palindrome (43141033014134).

The spelling of 22121021002012 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-one million, two thousand, twelve".