1201122122202 has 16 divisors (see below), whose sum is σ = 2669160271680. Its totient is φ = 400374040716.

The previous prime is 1201122122141. The next prime is 1201122122209. The reversal of 1201122122202 is 2022212211021.

It is a happy number.

1201122122202 is a `hidden beast` number, since 120 + 112 + 212 + 220 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1201122122209) 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, 11121501078 + ... + 11121501185.

It is an arithmetic number, because the mean of its divisors is an integer number (166822516980).

Almost surely, 2^{1201122122202} is an apocalyptic number.

1201122122202 is an abundant number, since it is smaller than the sum of its proper divisors (1468038149478).

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

1201122122202 is a wasteful number, since it uses less digits than its factorization.

1201122122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22243002274 (or 22243002268 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1201122122202 its reverse (2022212211021), we get a palindrome (3223334333223).

The spelling of 1201122122202 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred two".