202202001001021 has 16 divisors (see below), whose sum is σ = 231656739599488. Its totient is φ = 172889517528000.

The previous prime is 202202001000971. The next prime is 202202001001043. The reversal of 202202001001021 is 120100100202202.

It is a happy number.

It is not a de Polignac number, because 202202001001021 - 2²³ = 202201992612413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202202001000992 and 202202001001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202202001031021) 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, 31550926 + ... + 37414768.

It is an arithmetic number, because the mean of its divisors is an integer number (14478546224968).

Almost surely, 2^{202202001001021} is an apocalyptic number.

It is an amenable number.

202202001001021 is a deficient number, since it is larger than the sum of its proper divisors (29454738598467).

202202001001021 is a wasteful number, since it uses less digits than its factorization.

202202001001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875972.

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

Adding to 202202001001021 its reverse (120100100202202), we get a palindrome (322302101203223).

The spelling of 202202001001021 in words is "two hundred two trillion, two hundred two billion, one million, one thousand, twenty-one".