22221110100012 has 24 divisors (see below), whose sum is σ = 52952432580096. Its totient is φ = 7249440174288.

The previous prime is 22221110099999. The next prime is 22221110100029. The reversal of 22221110100012 is 21000101112222.

It is a junction number, because it is equal to n+sod(n) for n = 22221110099964 and 22221110100000.

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, 19699565128 + ... + 19699566255.

It is an arithmetic number, because the mean of its divisors is an integer number (2206351357504).

Almost surely, 2^{22221110100012} is an apocalyptic number.

It is an amenable number.

22221110100012 is an abundant number, since it is smaller than the sum of its proper divisors (30731322480084).

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

22221110100012 is a wasteful number, since it uses less digits than its factorization.

22221110100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39399131437 (or 39399131435 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22221110100012 its reverse (21000101112222), we get a palindrome (43221211212234).

The spelling of 22221110100012 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred ten million, one hundred thousand, twelve".