10112121211212 has 72 divisors (see below), whose sum is σ = 26255531121456. Its totient is φ = 3279170542464.

The previous prime is 10112121211141. The next prime is 10112121211327. The reversal of 10112121211212 is 21211212121101.

It is a happy number.

10112121211212 is a `hidden beast` number, since 10 + 112 + 121 + 211 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9586003 + ... + 10588469.

Almost surely, 2^{10112121211212} is an apocalyptic number.

10112121211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10112121211212 is an abundant number, since it is smaller than the sum of its proper divisors (16143409910244).

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

10112121211212 is a wasteful number, since it uses less digits than its factorization.

10112121211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010087 (or 1010082 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 10112121211212 its reverse (21211212121101), we get a palindrome (31323333332313).

The spelling of 10112121211212 in words is "ten trillion, one hundred twelve billion, one hundred twenty-one million, two hundred eleven thousand, two hundred twelve".