211222221101222 has 32 divisors (see below), whose sum is σ = 335644350361632. Its totient is φ = 99347219259904.

The previous prime is 211222221101219. The next prime is 211222221101257. The reversal of 211222221101222 is 222101122222112.

It is a super-2 number, since 2×211222221101222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 548760428 + ... + 549145200.

It is an arithmetic number, because the mean of its divisors is an integer number (10488885948801).

Almost surely, 2^{211222221101222} is an apocalyptic number.

211222221101222 is a deficient number, since it is larger than the sum of its proper divisors (124422129260410).

211222221101222 is a wasteful number, since it uses less digits than its factorization.

211222221101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393112.

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

Adding to 211222221101222 its reverse (222101122222112), we get a palindrome (433323343323334).

The spelling of 211222221101222 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred one thousand, two hundred twenty-two".