201121200222 has 32 divisors (see below), whose sum is σ = 406403965440. Its totient is φ = 66350249280.

The previous prime is 201121200211. The next prime is 201121200311. The reversal of 201121200222 is 222002121102.

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, 196479 + ... + 663962.

It is an arithmetic number, because the mean of its divisors is an integer number (12700123920).

Almost surely, 2^201121200222 is an apocalyptic number.

201121200222 is an abundant number, since it is smaller than the sum of its proper divisors (205282765218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201121200222 is a wasteful number, since it uses less digits than its factorization.

201121200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860848.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201121200222 its reverse (222002121102), we get a palindrome (423123321324).

The spelling of 201121200222 in words is "two hundred one billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-two".