212002120010121 has 32 divisors (see below), whose sum is σ = 334143052658688. Its totient is φ = 117041865874560.

The previous prime is 212002120010119. The next prime is 212002120010173. The reversal of 212002120010121 is 121010021200212.

It is not a de Polignac number, because 212002120010121 - 2¹ = 212002120010119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212002120010121.

It is not an unprimeable number, because it can be changed into a prime (212002120010521) 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, 1195191811 + ... + 1195369176.

It is an arithmetic number, because the mean of its divisors is an integer number (10441970395584).

Almost surely, 2^{212002120010121} is an apocalyptic number.

212002120010121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212002120010121 is a deficient number, since it is larger than the sum of its proper divisors (122140932648567).

212002120010121 is a wasteful number, since it uses less digits than its factorization.

212002120010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390561141.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212002120010121 its reverse (121010021200212), we get a palindrome (333012141210333).

The spelling of 212002120010121 in words is "two hundred twelve trillion, two billion, one hundred twenty million, ten thousand, one hundred twenty-one".