211202202002121 has 96 divisors (see below), whose sum is σ = 341496032192640. Its totient is φ = 124697538201600.

The previous prime is 211202202002093. The next prime is 211202202002131. The reversal of 211202202002121 is 121200202202112.

It is a happy number.

211202202002121 is a `hidden beast` number, since 2 + 1 + 120 + 220 + 200 + 2 + 121 = 666.

It is not a de Polignac number, because 211202202002121 - 2⁴⁷ = 70464713646793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211202202002094 and 211202202002103.

It is not an unprimeable number, because it can be changed into a prime (211202202002131) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4565425131 + ... + 4565471391.

It is an arithmetic number, because the mean of its divisors is an integer number (3557250335340).

Almost surely, 2^{211202202002121} is an apocalyptic number.

It is an amenable number.

211202202002121 is a deficient number, since it is larger than the sum of its proper divisors (130293830190519).

211202202002121 is a wasteful number, since it uses less digits than its factorization.

211202202002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53367 (or 53364 counting only the distinct ones).

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

Adding to 211202202002121 its reverse (121200202202112), we get a palindrome (332402404204233).

The spelling of 211202202002121 in words is "two hundred eleven trillion, two hundred two billion, two hundred two million, two thousand, one hundred twenty-one".