1021102021112 has 8 divisors (see below), whose sum is σ = 1914566289600. Its totient is φ = 510551010552.

The previous prime is 1021102021031. The next prime is 1021102021123. The reversal of 1021102021112 is 2111202011201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1021102021112² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63818876312 + ... + 63818876327.

It is an arithmetic number, because the mean of its divisors is an integer number (239320786200).

Almost surely, 2^{1021102021112} is an apocalyptic number.

It is an amenable number.

1021102021112 is a deficient number, since it is larger than the sum of its proper divisors (893464268488).

1021102021112 is a wasteful number, since it uses less digits than its factorization.

1021102021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127637752645 (or 127637752641 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1021102021112 its reverse (2111202011201), we get a palindrome (3132304032313).

The spelling of 1021102021112 in words is "one trillion, twenty-one billion, one hundred two million, twenty-one thousand, one hundred twelve".