1220201120 has 48 divisors (see below), whose sum is σ = 2908279080. Its totient is φ = 483753984.

The previous prime is 1220201089. The next prime is 1220201131. The reversal of 1220201120 is 211020221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 216325264 + 1003875856 = 14708^2 + 31684^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15665 + ... + 51824.

Almost surely, 2^1220201120 is an apocalyptic number.

1220201120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220201120 is an abundant number, since it is smaller than the sum of its proper divisors (1688077960).

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

1220201120 is a wasteful number, since it uses less digits than its factorization.

1220201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67617 (or 67609 counting only the distinct ones).

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

The square root of 1220201120 is about 34931.3772989271. The cubic root of 1220201120 is about 1068.5884435072.

Adding to 1220201120 its reverse (211020221), we get a palindrome (1431221341).

The spelling of 1220201120 in words is "one billion, two hundred twenty million, two hundred one thousand, one hundred twenty".