211202120002122 has 48 divisors (see below), whose sum is σ = 459785026314432. Its totient is φ = 70065272410560.

The previous prime is 211202120002063. The next prime is 211202120002123. The reversal of 211202120002122 is 221200021202112.

It is a happy number.

211202120002122 is a `hidden beast` number, since 211 + 20 + 21 + 200 + 0 + 212 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211202120002095 and 211202120002104.

It is not an unprimeable number, because it can be changed into a prime (211202120002123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153082878 + ... + 154456374.

It is an arithmetic number, because the mean of its divisors is an integer number (9578854714884).

Almost surely, 2^{211202120002122} is an apocalyptic number.

211202120002122 is an abundant number, since it is smaller than the sum of its proper divisors (248582906312310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211202120002122 is a wasteful number, since it uses less digits than its factorization.

211202120002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414203 (or 1414200 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211202120002122 its reverse (221200021202112), we get a palindrome (432402141204234).

The spelling of 211202120002122 in words is "two hundred eleven trillion, two hundred two billion, one hundred twenty million, two thousand, one hundred twenty-two".