211210212122 has 32 divisors (see below), whose sum is σ = 389975668992. Its totient is φ = 83545161984.

The previous prime is 211210212097. The next prime is 211210212167. The reversal of 211210212122 is 221212012112.

It is a self number, because there is not a number n which added to its sum of digits gives 211210212122.

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, 1464098 + ... + 1601874.

It is an arithmetic number, because the mean of its divisors is an integer number (12186739656).

Almost surely, 2^211210212122 is an apocalyptic number.

211210212122 is a deficient number, since it is larger than the sum of its proper divisors (178765456870).

211210212122 is a wasteful number, since it uses less digits than its factorization.

211210212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146222.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211210212122 its reverse (221212012112), we get a palindrome (432422224234).

The spelling of 211210212122 in words is "two hundred eleven billion, two hundred ten million, two hundred twelve thousand, one hundred twenty-two".