990122100122 has 8 divisors (see below), whose sum is σ = 1485607620000. Its totient is φ = 494919560124.

The previous prime is 990122100089. The next prime is 990122100167. The reversal of 990122100122 is 221001221099.

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

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 in 3 ways as a sum of consecutive naturals, for example, 70736222 + ... + 70750217.

It is an arithmetic number, because the mean of its divisors is an integer number (185700952500).

Almost surely, 2^990122100122 is an apocalyptic number.

990122100122 is a deficient number, since it is larger than the sum of its proper divisors (495485519878).

990122100122 is a wasteful number, since it uses less digits than its factorization.

990122100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141489940.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 990122100122 in words is "nine hundred ninety billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-two".