10120111212 has 24 divisors (see below), whose sum is σ = 23966036416. Its totient is φ = 3323021328.

The previous prime is 10120111201. The next prime is 10120111217. The reversal of 10120111212 is 21211102101.

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 (10120111217) 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, 6292798 + ... + 6294405.

Almost surely, 2^10120111212 is an apocalyptic number.

10120111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10120111212 is an abundant number, since it is smaller than the sum of its proper divisors (13845925204).

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

10120111212 is a wasteful number, since it uses less digits than its factorization.

10120111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12587277 (or 12587275 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10120111212 its reverse (21211102101), we get a palindrome (31331213313).

The spelling of 10120111212 in words is "ten billion, one hundred twenty million, one hundred eleven thousand, two hundred twelve".