90020212102 has 8 divisors (see below), whose sum is σ = 137243930112. Its totient is φ = 44272235400.

The previous prime is 90020212069. The next prime is 90020212147. The reversal of 90020212102 is 20121202009.

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

It is a self number, because there is not a number n which added to its sum of digits gives 90020212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368935174 + ... + 368935417.

It is an arithmetic number, because the mean of its divisors is an integer number (17155491264).

Almost surely, 2^90020212102 is an apocalyptic number.

90020212102 is a deficient number, since it is larger than the sum of its proper divisors (47223718010).

90020212102 is a wasteful number, since it uses less digits than its factorization.

90020212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737870654.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 90020212102 in words is "ninety billion, twenty million, two hundred twelve thousand, one hundred two".