210212022122 has 48 divisors (see below), whose sum is σ = 363975431040. Its totient is φ = 90484966656.

The previous prime is 210212022121. The next prime is 210212022143. The reversal of 210212022122 is 221220212012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 210212022122.

It is not an unprimeable number, because it can be changed into a prime (210212022121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 349823 + ... + 736749.

It is an arithmetic number, because the mean of its divisors is an integer number (7582821480).

Almost surely, 2^210212022122 is an apocalyptic number.

210212022122 is a deficient number, since it is larger than the sum of its proper divisors (153763408918).

210212022122 is a wasteful number, since it uses less digits than its factorization.

210212022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387023 (or 386994 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210212022122 its reverse (221220212012), we get a palindrome (431432234134).

The spelling of 210212022122 in words is "two hundred ten billion, two hundred twelve million, twenty-two thousand, one hundred twenty-two".