900102201002 has 4 divisors (see below), whose sum is σ = 1350153301506. Its totient is φ = 450051100500.

The previous prime is 900102200993. The next prime is 900102201071. The reversal of 900102201002 is 200102201009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 639470509561 + 260631691441 = 799669^2 + 510521^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225025550249 + ... + 225025550252.

Almost surely, 2^900102201002 is an apocalyptic number.

900102201002 is a deficient number, since it is larger than the sum of its proper divisors (450051100504).

900102201002 is a wasteful number, since it uses less digits than its factorization.

900102201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450051100503.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 900102201002 in words is "nine hundred billion, one hundred two million, two hundred one thousand, two".