210002212012122 has 48 divisors (see below), whose sum is σ = 479726165724000. Its totient is φ = 66209353061472.

The previous prime is 210002212012049. The next prime is 210002212012139. The reversal of 210002212012122 is 221210212200012.

It is a happy number.

210002212012122 is a `hidden beast` number, since 210 + 0 + 0 + 221 + 20 + 1 + 212 + 2 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 210002212012095 and 210002212012104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495783097 + ... + 496206492.

It is an arithmetic number, because the mean of its divisors is an integer number (9994295119250).

Almost surely, 2^{210002212012122} is an apocalyptic number.

210002212012122 is an abundant number, since it is smaller than the sum of its proper divisors (269723953711878).

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

210002212012122 is a wasteful number, since it uses less digits than its factorization.

210002212012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991990235 (or 991990232 counting only the distinct ones).

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

Adding to 210002212012122 its reverse (221210212200012), we get a palindrome (431212424212134).

The spelling of 210002212012122 in words is "two hundred ten trillion, two billion, two hundred twelve million, twelve thousand, one hundred twenty-two".