22121022121102 has 32 divisors (see below), whose sum is σ = 33699660567552. Its totient is φ = 10889530091424.

The previous prime is 22121022121043. The next prime is 22121022121123. The reversal of 22121022121102 is 20112122012122.

It is a super-3 number, since 3×22121022121102³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22121022121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15258123 + ... + 16644889.

It is an arithmetic number, because the mean of its divisors is an integer number (1053114392736).

Almost surely, 2^{22121022121102} is an apocalyptic number.

22121022121102 is a deficient number, since it is larger than the sum of its proper divisors (11578638446450).

22121022121102 is a wasteful number, since it uses less digits than its factorization.

22121022121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387392.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22121022121102 its reverse (20112122012122), we get a palindrome (42233144133224).

The spelling of 22121022121102 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-two million, one hundred twenty-one thousand, one hundred two".