1122212200122 has 48 divisors (see below), whose sum is σ = 2708788085640. Its totient is φ = 333389298816.

The previous prime is 1122212200049. The next prime is 1122212200127. The reversal of 1122212200122 is 2210022122211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 690496183521 + 431716016601 = 830961^2 + 657051^2 .

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 = 1122212200095 and 1122212200104.

It is not an unprimeable number, because it can be changed into a prime (1122212200127) 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, 82679053 + ... + 82692624.

Almost surely, 2^{1122212200122} is an apocalyptic number.

1122212200122 is an abundant number, since it is smaller than the sum of its proper divisors (1586575885518).

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

1122212200122 is a wasteful number, since it uses less digits than its factorization.

1122212200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165371727 (or 165371724 counting only the distinct ones).

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

Adding to 1122212200122 its reverse (2210022122211), we get a palindrome (3332234322333).

The spelling of 1122212200122 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, two hundred thousand, one hundred twenty-two".