22021013012 has 24 divisors (see below), whose sum is σ = 39120585504. Its totient is φ = 10843775712.

The previous prime is 22021013011. The next prime is 22021013017. The reversal of 22021013012 is 21031012022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021013011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2328758 + ... + 2338194.

It is an arithmetic number, because the mean of its divisors is an integer number (1630024396).

Almost surely, 2^22021013012 is an apocalyptic number.

It is an amenable number.

22021013012 is a deficient number, since it is larger than the sum of its proper divisors (17099572492).

22021013012 is a wasteful number, since it uses less digits than its factorization.

22021013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18215 (or 18213 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22021013012 its reverse (21031012022), we get a palindrome (43052025034).

The spelling of 22021013012 in words is "twenty-two billion, twenty-one million, thirteen thousand, twelve".