20200202022021 has 64 divisors (see below), whose sum is σ = 31697257912320. Its totient is φ = 11202915548160.

The previous prime is 20200202021929. The next prime is 20200202022043. The reversal of 20200202022021 is 12022020200202.

It is not a de Polignac number, because 20200202022021 - 2⁷ = 20200202021893 is a prime.

It is a super-2 number, since 2×20200202022021² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200202020021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 830280985 + ... + 830305313.

It is an arithmetic number, because the mean of its divisors is an integer number (495269654880).

Almost surely, 2^{20200202022021} is an apocalyptic number.

20200202022021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20200202022021 is a deficient number, since it is larger than the sum of its proper divisors (11497055890299).

20200202022021 is a wasteful number, since it uses less digits than its factorization.

20200202022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30186.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20200202022021 its reverse (12022020200202), we get a palindrome (32222222222223).

The spelling of 20200202022021 in words is "twenty trillion, two hundred billion, two hundred two million, twenty-two thousand, twenty-one".