1122220120 has 64 divisors (see below), whose sum is σ = 2934662400. Its totient is φ = 378234240.

The previous prime is 1122220093. The next prime is 1122220139. The reversal of 1122220120 is 210222211.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122220120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17446 + ... + 50485.

It is an arithmetic number, because the mean of its divisors is an integer number (45854100).

Almost surely, 2^1122220120 is an apocalyptic number.

1122220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122220120 is an abundant number, since it is smaller than the sum of its proper divisors (1812442280).

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

1122220120 is a wasteful number, since it uses less digits than its factorization.

1122220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68008 (or 68004 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1122220120 is about 33499.5540268822. The cubic root of 1122220120 is about 1039.1845555656.

Adding to 1122220120 its reverse (210222211), we get a palindrome (1332442331).

The spelling of 1122220120 in words is "one billion, one hundred twenty-two million, two hundred twenty thousand, one hundred twenty".