212211221011002 has 72 divisors (see below), whose sum is σ = 486236643984000. Its totient is φ = 66879772038000.

The previous prime is 212211221010991. The next prime is 212211221011019. The reversal of 212211221011002 is 200110122112212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29480874 + ... + 35965877.

It is an arithmetic number, because the mean of its divisors is an integer number (6753286722000).

Almost surely, 2^{212211221011002} is an apocalyptic number.

212211221011002 is an abundant number, since it is smaller than the sum of its proper divisors (274025422972998).

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

212211221011002 is a wasteful number, since it uses less digits than its factorization.

212211221011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65447296 (or 65447274 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212211221011002 its reverse (200110122112212), we get a palindrome (412321343123214).

The spelling of 212211221011002 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twenty-one million, eleven thousand, two".