202102120212011 has 16 divisors (see below), whose sum is σ = 218068160113440. Its totient is φ = 186675003002880.

The previous prime is 202102120211983. The next prime is 202102120212019. The reversal of 202102120212011 is 110212021201202.

It is a cyclic number.

It is not a de Polignac number, because 202102120212011 - 2⁶ = 202102120211947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202102120212019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82318190 + ... + 84737763.

It is an arithmetic number, because the mean of its divisors is an integer number (13629260007090).

Almost surely, 2^{202102120212011} is an apocalyptic number.

202102120212011 is a deficient number, since it is larger than the sum of its proper divisors (15966039901429).

202102120212011 is a wasteful number, since it uses less digits than its factorization.

202102120212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167057566.

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

Adding to 202102120212011 its reverse (110212021201202), we get a palindrome (312314141413213).

The spelling of 202102120212011 in words is "two hundred two trillion, one hundred two billion, one hundred twenty million, two hundred twelve thousand, eleven".