1201001250 has 40 divisors (see below), whose sum is σ = 3001551696. Its totient is φ = 320266000.

The previous prime is 1201001231. The next prime is 1201001251. The reversal of 1201001250 is 521001021.

It is not an unprimeable number, because it can be changed into a prime (1201001251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 156384 + ... + 163883.

Almost surely, 2^1201001250 is an apocalyptic number.

1201001250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201001250 is an abundant number, since it is smaller than the sum of its proper divisors (1800550446).

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

1201001250 is an equidigital number, since it uses as much as digits as its factorization.

1201001250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320292 (or 320277 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1201001250 is about 34655.4649370052. The cubic root of 1201001250 is about 1062.9540389349.

Adding to 1201001250 its reverse (521001021), we get a palindrome (1722002271).

The spelling of 1201001250 in words is "one billion, two hundred one million, one thousand, two hundred fifty".