1122122111201 has 24 divisors (see below), whose sum is σ = 1421530243560. Its totient is φ = 877857184512.

The previous prime is 1122122111197. The next prime is 1122122111249. The reversal of 1122122111201 is 1021112212211.

It can be written as a sum of positive squares in 4 ways, for example, as 45821683600 + 1076300427601 = 214060^2 + 1037449^2 .

It is not a de Polignac number, because 1122122111201 - 2² = 1122122111197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1122122111201.

It is not an unprimeable number, because it can be changed into a prime (1122122111261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9839786 + ... + 9953171.

It is an arithmetic number, because the mean of its divisors is an integer number (59230426815).

Almost surely, 2^{1122122111201} is an apocalyptic number.

It is an amenable number.

1122122111201 is a deficient number, since it is larger than the sum of its proper divisors (299408132359).

1122122111201 is a wasteful number, since it uses less digits than its factorization.

1122122111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19793073 (or 19793066 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122122111201 its reverse (1021112212211), we get a palindrome (2143234323412).

The spelling of 1122122111201 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-two million, one hundred eleven thousand, two hundred one".