22212200001012 has 72 divisors (see below), whose sum is σ = 62514114215616. Its totient is φ = 6012324804096.

The previous prime is 22212200000999. The next prime is 22212200001041. The reversal of 22212200001012 is 21010000221222.

It is a junction number, because it is equal to n+sod(n) for n = 22212200000982 and 22212200001000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 366217533 + ... + 366278180.

It is an arithmetic number, because the mean of its divisors is an integer number (868251586328).

Almost surely, 2^{22212200001012} is an apocalyptic number.

It is an amenable number.

22212200001012 is an abundant number, since it is smaller than the sum of its proper divisors (40301914214604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22212200001012 is a wasteful number, since it uses less digits than its factorization.

22212200001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732495765 (or 732495744 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22212200001012 its reverse (21010000221222), we get a palindrome (43222200222234).

The spelling of 22212200001012 in words is "twenty-two trillion, two hundred twelve billion, two hundred million, one thousand, twelve".