1122020120 has 32 divisors (see below), whose sum is σ = 2718742320. Its totient is φ = 414284160.

The previous prime is 1122020089. The next prime is 1122020131. The reversal of 1122020120 is 210202211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078346 + ... + 1079385.

Almost surely, 2^1122020120 is an apocalyptic number.

1122020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122020120 is an abundant number, since it is smaller than the sum of its proper divisors (1596722200).

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

1122020120 is a wasteful number, since it uses less digits than its factorization.

1122020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157755 (or 2157751 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1122020120 is about 33496.5687795034. The cubic root of 1122020120 is about 1039.1228180463.

Adding to 1122020120 its reverse (210202211), we get a palindrome (1332222331).

The spelling of 1122020120 in words is "one billion, one hundred twenty-two million, twenty thousand, one hundred twenty".