202102021000001 has 8 divisors (see below), whose sum is σ = 205495971753984. Its totient is φ = 198736235812800.

The previous prime is 202102020999919. The next prime is 202102021000051. The reversal of 202102021000001 is 100000120201202.

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 202102021000001 - 2¹⁸ = 202102020737857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102021000051) 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, 7041377225 + ... + 7041405926.

It is an arithmetic number, because the mean of its divisors is an integer number (25686996469248).

Almost surely, 2^{202102021000001} is an apocalyptic number.

It is an amenable number.

202102021000001 is a deficient number, since it is larger than the sum of its proper divisors (3393950753983).

202102021000001 is a wasteful number, since it uses less digits than its factorization.

202102021000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14082783391.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 202102021000001 its reverse (100000120201202), we get a palindrome (302102141201203).

The spelling of 202102021000001 in words is "two hundred two trillion, one hundred two billion, twenty-one million, one", and thus it is an aban number.