1021011011112 has 64 divisors (see below), whose sum is σ = 2579414025600. Its totient is φ = 336756358400.

The previous prime is 1021011011099. The next prime is 1021011011159. The reversal of 1021011011112 is 2111101101201.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3764314 + ... + 4026422.

It is an arithmetic number, because the mean of its divisors is an integer number (40303344150).

Almost surely, 2^{1021011011112} is an apocalyptic number.

1021011011112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021011011112 is an abundant number, since it is smaller than the sum of its proper divisors (1558403014488).

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

1021011011112 is a wasteful number, since it uses less digits than its factorization.

1021011011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263826 (or 263822 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1021011011112 its reverse (2111101101201), we get a palindrome (3132112112313).

The spelling of 1021011011112 in words is "one trillion, twenty-one billion, eleven million, eleven thousand, one hundred twelve".