2101001021012 has 36 divisors (see below), whose sum is σ = 3719605513596. Its totient is φ = 1038342243840.

The previous prime is 2101001020961. The next prime is 2101001021039. The reversal of 2101001021012 is 2101201001012.

It can be written as a sum of positive squares in 6 ways, for example, as 10443613636 + 2090557407376 = 102194^2 + 1445876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2101001020984 and 2101001021002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29715062 + ... + 29785682.

Almost surely, 2^{2101001021012} is an apocalyptic number.

It is an amenable number.

2101001021012 is a deficient number, since it is larger than the sum of its proper divisors (1618604492584).

2101001021012 is a wasteful number, since it uses less digits than its factorization.

2101001021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71228 (or 70993 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2101001021012 its reverse (2101201001012), we get a palindrome (4202202022024).

The spelling of 2101001021012 in words is "two trillion, one hundred one billion, one million, twenty-one thousand, twelve".