1201201512 has 32 divisors (see below), whose sum is σ = 3432004800. Its totient is φ = 343200384.

The previous prime is 1201201499. The next prime is 1201201523. The reversal of 1201201512 is 2151021021.

It is a super-2 number, since 2×1201201512² = 2885770144862172288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1201201491 and 1201201500.

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, 3574837 + ... + 3575172.

It is an arithmetic number, because the mean of its divisors is an integer number (107250150).

Almost surely, 2^1201201512 is an apocalyptic number.

1201201512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201201512 is an abundant number, since it is smaller than the sum of its proper divisors (2230803288).

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

1201201512 is a wasteful number, since it uses less digits than its factorization.

1201201512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7150025 (or 7150021 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1201201512 is about 34658.3541444195. The cubic root of 1201201512 is about 1063.0131167172.

Adding to 1201201512 its reverse (2151021021), we get a palindrome (3352222533).

The spelling of 1201201512 in words is "one billion, two hundred one million, two hundred one thousand, five hundred twelve".