211021122102 has 32 divisors (see below), whose sum is σ = 484255666944. Its totient is φ = 60051540000.

The previous prime is 211021122071. The next prime is 211021122253. The reversal of 211021122102 is 201221120112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9998049 + ... + 10019132.

It is an arithmetic number, because the mean of its divisors is an integer number (15132989592).

Almost surely, 2^211021122102 is an apocalyptic number.

211021122102 is an abundant number, since it is smaller than the sum of its proper divisors (273234544842).

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

211021122102 is a wasteful number, since it uses less digits than its factorization.

211021122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20017444.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211021122102 its reverse (201221120112), we get a palindrome (412242242214).

The spelling of 211021122102 in words is "two hundred eleven billion, twenty-one million, one hundred twenty-two thousand, one hundred two".