1202020002021 has 16 divisors (see below), whose sum is σ = 1627943675904. Its totient is φ = 788814673584.

The previous prime is 1202020002019. The next prime is 1202020002059. The reversal of 1202020002021 is 1202000202021.

It is not a de Polignac number, because 1202020002021 - 2¹ = 1202020002019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202020001988 and 1202020002006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202020004021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11595201 + ... + 11698406.

It is an arithmetic number, because the mean of its divisors is an integer number (101746479744).

Almost surely, 2^{1202020002021} is an apocalyptic number.

It is an amenable number.

1202020002021 is a deficient number, since it is larger than the sum of its proper divisors (425923673883).

1202020002021 is a wasteful number, since it uses less digits than its factorization.

1202020002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23293880.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 1202020002021 its reverse (1202000202021), we get a palindrome (2404020204042).

The spelling of 1202020002021 in words is "one trillion, two hundred two billion, twenty million, two thousand, twenty-one".