212211212210222 has 16 divisors (see below), whose sum is σ = 321134735834352. Its totient is φ = 105166305847680.

The previous prime is 212211212210203. The next prime is 212211212210267. The reversal of 212211212210222 is 222012212112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87231908 + ... + 89631624.

It is an arithmetic number, because the mean of its divisors is an integer number (20070920989647).

Almost surely, 2^{212211212210222} is an apocalyptic number.

212211212210222 is a deficient number, since it is larger than the sum of its proper divisors (108923523624130).

212211212210222 is a wasteful number, since it uses less digits than its factorization.

212211212210222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791123.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212211212210222 its reverse (222012212112212), we get a palindrome (434223424322434).

The spelling of 212211212210222 in words is "two hundred twelve trillion, two hundred eleven billion, two hundred twelve million, two hundred ten thousand, two hundred twenty-two".