212210222210 has 64 divisors (see below), whose sum is σ = 440944003584. Its totient is φ = 72028224000.

The previous prime is 212210222101. The next prime is 212210222251. The reversal of 212210222210 is 12222012212.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3062750 + ... + 3131270.

It is an arithmetic number, because the mean of its divisors is an integer number (6889750056).

Almost surely, 2^212210222210 is an apocalyptic number.

212210222210 is an abundant number, since it is smaller than the sum of its proper divisors (228733781374).

212210222210 is a wasteful number, since it uses less digits than its factorization.

212210222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68979.

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

Adding to 212210222210 its reverse (12222012212), we get a palindrome (224432234422).

The spelling of 212210222210 in words is "two hundred twelve billion, two hundred ten million, two hundred twenty-two thousand, two hundred ten".