211122100220202 has 12 divisors (see below), whose sum is σ = 457431217143810. Its totient is φ = 70374033406728.

The previous prime is 211122100220189. The next prime is 211122100220231. The reversal of 211122100220202 is 202022001221112.

It is a happy number.

211122100220202 is a `hidden beast` number, since 21 + 1 + 1 + 221 + 0 + 0 + 220 + 202 = 666.

It can be written as a sum of positive squares in only one way, i.e., 179401673716281 + 31720426503921 = 13394091^2 + 5632089^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11729005567789 = 211122100220202 / (2 + 1 + 1 + 1 + 2 + 2 + 1 + 0 + 0 + 2 + 2 + 0 + 2 + 0 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5864502783877 + ... + 5864502783912.

Almost surely, 2^{211122100220202} is an apocalyptic number.

211122100220202 is an abundant number, since it is smaller than the sum of its proper divisors (246309116923608).

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

211122100220202 is a wasteful number, since it uses less digits than its factorization.

211122100220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11729005567797 (or 11729005567794 counting only the distinct ones).

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

Adding to 211122100220202 its reverse (202022001221112), we get a palindrome (413144101441314).

The spelling of 211122100220202 in words is "two hundred eleven trillion, one hundred twenty-two billion, one hundred million, two hundred twenty thousand, two hundred two".