211002221022 has 32 divisors (see below), whose sum is σ = 427168304640. Its totient is φ = 69473745600.

The previous prime is 211002220991. The next prime is 211002221033. The reversal of 211002221022 is 220122200112.

It is a junction number, because it is equal to n+sod(n) for n = 211002220992 and 211002221010.

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, 2852379 + ... + 2925417.

It is an arithmetic number, because the mean of its divisors is an integer number (13349009520).

Almost surely, 2^211002221022 is an apocalyptic number.

211002221022 is an abundant number, since it is smaller than the sum of its proper divisors (216166083618).

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

211002221022 is a wasteful number, since it uses less digits than its factorization.

211002221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78928.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 211002221022 its reverse (220122200112), we get a palindrome (431124421134).

The spelling of 211002221022 in words is "two hundred eleven billion, two million, two hundred twenty-one thousand, twenty-two".