22012101012 has 48 divisors (see below), whose sum is σ = 56040933312. Its totient is φ = 6669127680.

The previous prime is 22012100969. The next prime is 22012101017. The reversal of 22012101012 is 21010121022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012101017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951778 + ... + 974630.

It is an arithmetic number, because the mean of its divisors is an integer number (1167519444).

Almost surely, 2^22012101012 is an apocalyptic number.

22012101012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22012101012 is an abundant number, since it is smaller than the sum of its proper divisors (34028832300).

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

22012101012 is a wasteful number, since it uses less digits than its factorization.

22012101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30168 (or 30166 counting only the distinct ones).

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

Adding to 22012101012 its reverse (21010121022), we get a palindrome (43022222034).

It can be divided in two parts, 220121010 and 12, that added together give a palindrome (220121022).

The spelling of 22012101012 in words is "twenty-two billion, twelve million, one hundred one thousand, twelve".