2021000011012 has 12 divisors (see below), whose sum is σ = 3539744735436. Its totient is φ = 1009644372320.

The previous prime is 2021000010959. The next prime is 2021000011039. The reversal of 2021000011012 is 2101100001202.

It can be written as a sum of positive squares in 2 ways, for example, as 1125262694656 + 895737316356 = 1060784^2 + 946434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2021000011012.

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, 213902983 + ... + 213912430.

It is an arithmetic number, because the mean of its divisors is an integer number (294978727953).

Almost surely, 2^{2021000011012} is an apocalyptic number.

It is an amenable number.

2021000011012 is a deficient number, since it is larger than the sum of its proper divisors (1518744724424).

2021000011012 is a wasteful number, since it uses less digits than its factorization.

2021000011012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427816598 (or 427816596 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2021000011012 its reverse (2101100001202), we get a palindrome (4122100012214).

The spelling of 2021000011012 in words is "two trillion, twenty-one billion, eleven thousand, twelve".