1111112021012 has 12 divisors (see below), whose sum is σ = 2222224042080. Its totient is φ = 476190866136.

The previous prime is 1111112021003. The next prime is 1111112021023. The reversal of 1111112021012 is 2101202111111.

1111112021012 is an admirable number.

It is a super-2 number, since 2×1111112021012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 19841286062 + ... + 19841286117.

It is an arithmetic number, because the mean of its divisors is an integer number (185185336840).

Almost surely, 2^{1111112021012} is an apocalyptic number.

It is an amenable number.

1111112021012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1111112021012 is a wasteful number, since it uses less digits than its factorization.

1111112021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39682572190 (or 39682572188 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1111112021012 its reverse (2101202111111), we get a palindrome (3212314132123).

Subtracting 1111112021012 from its reverse (2101202111111), we obtain a palindrome (990090090099).

The spelling of 1111112021012 in words is "one trillion, one hundred eleven billion, one hundred twelve million, twenty-one thousand, twelve".