1201121222202 has 48 divisors (see below), whose sum is σ = 2856431137248. Its totient is φ = 361743135840.

The previous prime is 1201121222177. The next prime is 1201121222219. The reversal of 1201121222202 is 2022221211021.

It is a happy number.

1201121222202 is a `hidden beast` number, since 120 + 1 + 121 + 222 + 202 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18575913 + ... + 18640460.

It is an arithmetic number, because the mean of its divisors is an integer number (59508982026).

Almost surely, 2^{1201121222202} is an apocalyptic number.

1201121222202 is an abundant number, since it is smaller than the sum of its proper divisors (1655309915046).

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

1201121222202 is a wasteful number, since it uses less digits than its factorization.

1201121222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37216555 (or 37216552 counting only the distinct ones).

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

Adding to 1201121222202 its reverse (2022221211021), we get a palindrome (3223342433223).

The spelling of 1201121222202 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred two".