1201120002 has 20 divisors (see below), whose sum is σ = 2691398886. Its totient is φ = 400373280.

The previous prime is 1201119949. The next prime is 1201120003. The reversal of 1201120002 is 2000211021.

It can be written as a sum of positive squares in only one way, i.e., 1139670081 + 61449921 = 33759^2 + 7839^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1201120003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3706999 + ... + 3707322.

Almost surely, 2^1201120002 is an apocalyptic number.

1201120002 is an abundant number, since it is smaller than the sum of its proper divisors (1490278884).

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

1201120002 is an equidigital number, since it uses as much as digits as its factorization.

1201120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7414335 (or 7414326 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1201120002 is about 34657.1782175064. The cubic root of 1201120002 is about 1062.9890718592.

Adding to 1201120002 its reverse (2000211021), we get a palindrome (3201331023).

The spelling of 1201120002 in words is "one billion, two hundred one million, one hundred twenty thousand, two".