1201222112022 has 96 divisors (see below), whose sum is σ = 2684157315840. Its totient is φ = 388018088640.

The previous prime is 1201222112017. The next prime is 1201222112023. The reversal of 1201222112022 is 2202112221021.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1201222111986 and 1201222112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201222112023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 214846447 + ... + 214852037.

It is an arithmetic number, because the mean of its divisors is an integer number (27959972040).

Almost surely, 2^{1201222112022} is an apocalyptic number.

1201222112022 is an abundant number, since it is smaller than the sum of its proper divisors (1482935203818).

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

1201222112022 is a wasteful number, since it uses less digits than its factorization.

1201222112022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778 (or 7775 counting only the distinct ones).

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

Adding to 1201222112022 its reverse (2202112221021), we get a palindrome (3403334333043).

The spelling of 1201222112022 in words is "one trillion, two hundred one billion, two hundred twenty-two million, one hundred twelve thousand, twenty-two".