202122201001021 has 8 divisors (see below), whose sum is σ = 231005828540160. Its totient is φ = 173240830310928.

The previous prime is 202122201001013. The next prime is 202122201001081. The reversal of 202122201001021 is 120100102221202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202122201001021 - 2³ = 202122201001013 is a prime.

It is a super-3 number, since 3×202122201001021³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202122201000986 and 202122201001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122201001081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564020341 + ... + 564378586.

It is an arithmetic number, because the mean of its divisors is an integer number (28875728567520).

Almost surely, 2^{202122201001021} is an apocalyptic number.

It is an amenable number.

202122201001021 is a deficient number, since it is larger than the sum of its proper divisors (28883627539139).

202122201001021 is a wasteful number, since it uses less digits than its factorization.

202122201001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128424523.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202122201001021 its reverse (120100102221202), we get a palindrome (322222303222223).

The spelling of 202122201001021 in words is "two hundred two trillion, one hundred twenty-two billion, two hundred one million, one thousand, twenty-one".