1201332120 has 32 divisors (see below), whose sum is σ = 3603996720. Its totient is φ = 320355200.

The previous prime is 1201332107. The next prime is 1201332137. The reversal of 1201332120 is 212331021.

It is a hoax number, since the sum of its digits (15) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1201332120.

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, 5005431 + ... + 5005670.

Almost surely, 2^1201332120 is an apocalyptic number.

1201332120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201332120 is an abundant number, since it is smaller than the sum of its proper divisors (2402664600).

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

1201332120 is a wasteful number, since it uses less digits than its factorization.

1201332120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10011115 (or 10011111 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1201332120 is about 34660.2383142413. The cubic root of 1201332120 is about 1063.0516428607.

Adding to 1201332120 its reverse (212331021), we get a palindrome (1413663141).

The spelling of 1201332120 in words is "one billion, two hundred one million, three hundred thirty-two thousand, one hundred twenty".