1021011012112 has 40 divisors (see below), whose sum is σ = 2434718570816. Its totient is φ = 403916443776.

The previous prime is 1021011012101. The next prime is 1021011012121. The reversal of 1021011012112 is 2112101101201.

It is a happy number.

It is a super-2 number, since 2×1021011012112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1021011012092 and 1021011012101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350620458 + ... + 350623369.

Almost surely, 2^{1021011012112} is an apocalyptic number.

It is an amenable number.

1021011012112 is an abundant number, since it is smaller than the sum of its proper divisors (1413707558704).

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

1021011012112 is a wasteful number, since it uses less digits than its factorization.

1021011012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701243855 (or 701243849 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1021011012112 its reverse (2112101101201), we get a palindrome (3133112113313).

The spelling of 1021011012112 in words is "one trillion, twenty-one billion, eleven million, twelve thousand, one hundred twelve".