211121200222 has 16 divisors (see below), whose sum is σ = 324273446640. Its totient is φ = 103033490112.

The previous prime is 211121200217. The next prime is 211121200253. The reversal of 211121200222 is 222002121112.

It is a happy number.

It is a super-2 number, since 2×211121200222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211121200196 and 211121200205.

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, 736063 + ... + 981850.

It is an arithmetic number, because the mean of its divisors is an integer number (20267090415).

Almost surely, 2^211121200222 is an apocalyptic number.

211121200222 is a deficient number, since it is larger than the sum of its proper divisors (113152246418).

211121200222 is a wasteful number, since it uses less digits than its factorization.

211121200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719387.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211121200222 its reverse (222002121112), we get a palindrome (433123321334).

The spelling of 211121200222 in words is "two hundred eleven billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-two".