22100221121012 has 12 divisors (see below), whose sum is σ = 38678554305216. Its totient is φ = 11049205605240.

The previous prime is 22100221120963. The next prime is 22100221121051. The reversal of 22100221121012 is 21012112200122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226183868 + ... + 226281555.

It is an arithmetic number, because the mean of its divisors is an integer number (3223212858768).

Almost surely, 2^{22100221121012} is an apocalyptic number.

It is an amenable number.

22100221121012 is a deficient number, since it is larger than the sum of its proper divisors (16578333184204).

22100221121012 is a wasteful number, since it uses less digits than its factorization.

22100221121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452477638 (or 452477636 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22100221121012 its reverse (21012112200122), we get a palindrome (43112333321134).

The spelling of 22100221121012 in words is "twenty-two trillion, one hundred billion, two hundred twenty-one million, one hundred twenty-one thousand, twelve".