990112211022202 has 4 divisors (see below), whose sum is σ = 1485168316533306. Its totient is φ = 495056105511100.

The previous prime is 990112211022163. The next prime is 990112211022223. The reversal of 990112211022202 is 202220112211099.

It is a happy number.

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., 676512349042201 + 313599861980001 = 26009851^2 + 17708751^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247528052755549 + ... + 247528052755552.

Almost surely, 2^{990112211022202} is an apocalyptic number.

990112211022202 is a deficient number, since it is larger than the sum of its proper divisors (495056105511104).

990112211022202 is a wasteful number, since it uses less digits than its factorization.

990112211022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495056105511103.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 990112211022202 in words is "nine hundred ninety trillion, one hundred twelve billion, two hundred eleven million, twenty-two thousand, two hundred two".