201220022222 has 4 divisors (see below), whose sum is σ = 301830033336. Its totient is φ = 100610011110.

The previous prime is 201220022219. The next prime is 201220022239. The reversal of 201220022222 is 222220022102.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 201220022222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50305005554 + ... + 50305005557.

It is an arithmetic number, because the mean of its divisors is an integer number (75457508334).

Almost surely, 2^201220022222 is an apocalyptic number.

201220022222 is a deficient number, since it is larger than the sum of its proper divisors (100610011114).

201220022222 is a wasteful number, since it uses less digits than its factorization.

201220022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100610011113.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 201220022222 its reverse (222220022102), we get a palindrome (423440044324).

The spelling of 201220022222 in words is "two hundred one billion, two hundred twenty million, twenty-two thousand, two hundred twenty-two".