100022011212 has 48 divisors (see below), whose sum is σ = 238847248640. Its totient is φ = 32560532928.

The previous prime is 100022011211. The next prime is 100022011217. The reversal of 100022011212 is 212110220001.

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

It is not an unprimeable number, because it can be changed into a prime (100022011211) 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, 5865114 + ... + 5882142.

Almost surely, 2^100022011212 is an apocalyptic number.

100022011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100022011212 is an abundant number, since it is smaller than the sum of its proper divisors (138825237428).

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

100022011212 is a wasteful number, since it uses less digits than its factorization.

100022011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28462 (or 28460 counting only the distinct ones).

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

Adding to 100022011212 its reverse (212110220001), we get a palindrome (312132231213).

The spelling of 100022011212 in words is "one hundred billion, twenty-two million, eleven thousand, two hundred twelve".