201002102212121 has 8 divisors (see below), whose sum is σ = 229717044735360. Its totient is φ = 172287248812128.

The previous prime is 201002102212081. The next prime is 201002102212133. The reversal of 201002102212121 is 121212201200102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201002102212121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201002102212121.

It is not an unprimeable number, because it can be changed into a prime (201002102212141) 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, 17375981 + ... + 26531658.

It is an arithmetic number, because the mean of its divisors is an integer number (28714630591920).

Almost surely, 2^{201002102212121} is an apocalyptic number.

It is an amenable number.

201002102212121 is a deficient number, since it is larger than the sum of its proper divisors (28714942523239).

201002102212121 is an equidigital number, since it uses as much as digits as its factorization.

201002102212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44561623.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201002102212121 its reverse (121212201200102), we get a palindrome (322214303412223).

The spelling of 201002102212121 in words is "two hundred one trillion, two billion, one hundred two million, two hundred twelve thousand, one hundred twenty-one".