211222221220198 has 16 divisors (see below), whose sum is σ = 327759048474480. Its totient is φ = 101969214602976.

The previous prime is 211222221220193. The next prime is 211222221220201. The reversal of 211222221220198 is 891022122222112.

It is a super-2 number, since 2×211222221220198² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222221220193) 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, 53441740 + ... + 57257872.

It is an arithmetic number, because the mean of its divisors is an integer number (20484940529655).

Almost surely, 2^{211222221220198} is an apocalyptic number.

211222221220198 is a deficient number, since it is larger than the sum of its proper divisors (116536827254282).

211222221220198 is a wasteful number, since it uses less digits than its factorization.

211222221220198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4770471.

The product of its (nonzero) digits is 18432, while the sum is 37.

The spelling of 211222221220198 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, one hundred ninety-eight".