1250021002 has 16 divisors (see below), whose sum is σ = 1903178592. Its totient is φ = 615672400.

The previous prime is 1250020979. The next prime is 1250021009. The reversal of 1250021002 is 2001200521.

It is not an unprimeable number, because it can be changed into a prime (1250021009) by changing a digit.

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, 46752 + ... + 68452.

It is an arithmetic number, because the mean of its divisors is an integer number (118948662).

Almost surely, 2^1250021002 is an apocalyptic number.

1250021002 is a deficient number, since it is larger than the sum of its proper divisors (653157590).

1250021002 is a wasteful number, since it uses less digits than its factorization.

1250021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22133.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1250021002 is about 35355.6360712122. The cubic root of 1250021002 is about 1077.2233779738.

Adding to 1250021002 its reverse (2001200521), we get a palindrome (3251221523).

The spelling of 1250021002 in words is "one billion, two hundred fifty million, twenty-one thousand, two".