202102121121201 has 48 divisors (see below), whose sum is σ = 355421331218304. Its totient is φ = 108026745887232.

The previous prime is 202102121121193. The next prime is 202102121121209. The reversal of 202102121121201 is 102121121201202.

202102121121201 is a `hidden beast` number, since 2 + 0 + 210 + 21 + 211 + 21 + 201 = 666.

It is an interprime number because it is at equal distance from previous prime (202102121121193) and next prime (202102121121209).

It is not a de Polignac number, because 202102121121201 - 2³ = 202102121121193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202102121121209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 578672446 + ... + 579021591.

It is an arithmetic number, because the mean of its divisors is an integer number (7404611067048).

Almost surely, 2^{202102121121201} is an apocalyptic number.

202102121121201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202102121121201 is a deficient number, since it is larger than the sum of its proper divisors (153319210097103).

202102121121201 is a wasteful number, since it uses less digits than its factorization.

202102121121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157694230 (or 1157694227 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202102121121201 its reverse (102121121201202), we get a palindrome (304223242322403).

It can be divided in two parts, 202 and 102121121201, that multiplied together give a palindrome (20628466482602).

The spelling of 202102121121201 in words is "two hundred two trillion, one hundred two billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred one".