211111122001010 has 32 divisors (see below), whose sum is σ = 473766258206592. Its totient is φ = 65800869194880.

The previous prime is 211111122000967. The next prime is 211111122001027. The reversal of 211111122001010 is 10100221111112.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 137085143387 + ... + 137085144926.

It is an arithmetic number, because the mean of its divisors is an integer number (14805195568956).

Almost surely, 2^{211111122001010} is an apocalyptic number.

211111122001010 is an abundant number, since it is smaller than the sum of its proper divisors (262655136205582).

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

211111122001010 is a wasteful number, since it uses less digits than its factorization.

211111122001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274170288338.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 211111122001010 its reverse (10100221111112), we get a palindrome (221211343112122).

The spelling of 211111122001010 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred twenty-two million, one thousand, ten".