211122211220222 has 16 divisors (see below), whose sum is σ = 316730612977632. Its totient is φ = 105545340958560.

The previous prime is 211122211220177. The next prime is 211122211220227. The reversal of 211122211220222 is 222022112221112.

211122211220222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211122211220227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666437408 + ... + 666754124.

It is an arithmetic number, because the mean of its divisors is an integer number (19795663311102).

Almost surely, 2^{211122211220222} is an apocalyptic number.

211122211220222 is a deficient number, since it is larger than the sum of its proper divisors (105608401757410).

211122211220222 is a wasteful number, since it uses less digits than its factorization.

211122211220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365443.

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

Adding to 211122211220222 its reverse (222022112221112), we get a palindrome (433144323441334).

The spelling of 211122211220222 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred eleven million, two hundred twenty thousand, two hundred twenty-two".