210102020022021 has 32 divisors (see below), whose sum is σ = 284696786949120. Its totient is φ = 137806756137600.

The previous prime is 210102020022019. The next prime is 210102020022101. The reversal of 210102020022021 is 120220020201012.

It is not a de Polignac number, because 210102020022021 - 2¹ = 210102020022019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102020022221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58603441 + ... + 62085161.

It is an arithmetic number, because the mean of its divisors is an integer number (8896774592160).

Almost surely, 2^{210102020022021} is an apocalyptic number.

It is an amenable number.

210102020022021 is a deficient number, since it is larger than the sum of its proper divisors (74594766927099).

210102020022021 is a wasteful number, since it uses less digits than its factorization.

210102020022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483097.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210102020022021 its reverse (120220020201012), we get a palindrome (330322040223033).

The spelling of 210102020022021 in words is "two hundred ten trillion, one hundred two billion, twenty million, twenty-two thousand, twenty-one".