10121101212 has 48 divisors (see below), whose sum is σ = 24651845792. Its totient is φ = 3228698880.

The previous prime is 10121101157. The next prime is 10121101219. The reversal of 10121101212 is 21210112101.

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 (10121101219) 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, 159763 + ... + 213930.

Almost surely, 2^10121101212 is an apocalyptic number.

10121101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10121101212 is an abundant number, since it is smaller than the sum of its proper divisors (14530744580).

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

10121101212 is a wasteful number, since it uses less digits than its factorization.

10121101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373798 (or 373796 counting only the distinct ones).

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

Adding to 10121101212 its reverse (21210112101), we get a palindrome (31331213313).

The spelling of 10121101212 in words is "ten billion, one hundred twenty-one million, one hundred one thousand, two hundred twelve".