20212020011002 has 4 divisors (see below), whose sum is σ = 30318030016506. Its totient is φ = 10106010005500.

The previous prime is 20212020010981. The next prime is 20212020011059. The reversal of 20212020011002 is 20011002021202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12642582920881 + 7569437090121 = 3555641^2 + 2751261^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053005002749 + ... + 5053005002752.

Almost surely, 2^{20212020011002} is an apocalyptic number.

20212020011002 is a deficient number, since it is larger than the sum of its proper divisors (10106010005504).

20212020011002 is a wasteful number, since it uses less digits than its factorization.

20212020011002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10106010005503.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20212020011002 its reverse (20011002021202), we get a palindrome (40223022032204).

It can be divided in two parts, 202120200 and 11002, that added together give a palindrome (202131202).

The spelling of 20212020011002 in words is "twenty trillion, two hundred twelve billion, twenty million, eleven thousand, two".