22120001100012 has 48 divisors (see below), whose sum is σ = 52083520144992. Its totient is φ = 7306198179840.

The previous prime is 22120001099939. The next prime is 22120001100061. The reversal of 22120001100012 is 21000110002122.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 3161028 + ... + 7364244.

It is an arithmetic number, because the mean of its divisors is an integer number (1085073336354).

Almost surely, 2^{22120001100012} is an apocalyptic number.

It is an amenable number.

22120001100012 is an abundant number, since it is smaller than the sum of its proper divisors (29963519044980).

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

22120001100012 is a wasteful number, since it uses less digits than its factorization.

22120001100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4207218 (or 4207216 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22120001100012 its reverse (21000110002122), we get a palindrome (43120111102134).

The spelling of 22120001100012 in words is "twenty-two trillion, one hundred twenty billion, one million, one hundred thousand, twelve".