90001011000221 has 8 divisors (see below), whose sum is σ = 92766277173504. Its totient is φ = 87266300254560.

The previous prime is 90001011000211. The next prime is 90001011000269. The reversal of 90001011000221 is 12200011010009.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90001011000221 - 2¹⁰ = 90001010999197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90001011000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90001011000211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7638850925 + ... + 7638862706.

It is an arithmetic number, because the mean of its divisors is an integer number (11595784646688).

Almost surely, 2^{90001011000221} is an apocalyptic number.

It is an amenable number.

90001011000221 is a deficient number, since it is larger than the sum of its proper divisors (2765266173283).

90001011000221 is a wasteful number, since it uses less digits than its factorization.

90001011000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15277713811.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 90001011000221 in words is "ninety trillion, one billion, eleven million, two hundred twenty-one", and thus it is an aban number.