10021121112 has 16 divisors (see below), whose sum is σ = 25052802840. Its totient is φ = 3340373696.

The previous prime is 10021121029. The next prime is 10021121153. The reversal of 10021121112 is 21112112001.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208773333 + ... + 208773380.

Almost surely, 2^10021121112 is an apocalyptic number.

10021121112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10021121112 is an abundant number, since it is smaller than the sum of its proper divisors (15031681728).

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

10021121112 is a wasteful number, since it uses less digits than its factorization.

10021121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417546722 (or 417546718 counting only the distinct ones).

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

Adding to 10021121112 its reverse (21112112001), we get a palindrome (31133233113).

The spelling of 10021121112 in words is "ten billion, twenty-one million, one hundred twenty-one thousand, one hundred twelve".