1201322222122 has 48 divisors (see below), whose sum is σ = 2099172672000. Its totient is φ = 511243366400.

The previous prime is 1201322222083. The next prime is 1201322222147. The reversal of 1201322222122 is 2212222231021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1201322222093 and 1201322222102.

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, 719754 + ... + 1709002.

It is an arithmetic number, because the mean of its divisors is an integer number (43732764000).

Almost surely, 2^{1201322222122} is an apocalyptic number.

1201322222122 is a deficient number, since it is larger than the sum of its proper divisors (897850449878).

1201322222122 is a wasteful number, since it uses less digits than its factorization.

1201322222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989487 (or 989470 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1201322222122 its reverse (2212222231021), we get a palindrome (3413544453143).

The spelling of 1201322222122 in words is "one trillion, two hundred one billion, three hundred twenty-two million, two hundred twenty-two thousand, one hundred twenty-two".