990022101220111 has 4 divisors (see below), whose sum is σ = 990028479109824. Its totient is φ = 990015723330400.

The previous prime is 990022101219941. The next prime is 990022101220121. The reversal of 990022101220111 is 111022101220099.

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

It is a cyclic number.

It is not a de Polignac number, because 990022101220111 - 2¹³ = 990022101211919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990022101220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3188712010 + ... + 3189022471.

It is an arithmetic number, because the mean of its divisors is an integer number (247507119777456).

Almost surely, 2^{990022101220111} is an apocalyptic number.

990022101220111 is a deficient number, since it is larger than the sum of its proper divisors (6377889713).

990022101220111 is a wasteful number, since it uses less digits than its factorization.

990022101220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377889712.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 990022101220111 in words is "nine hundred ninety trillion, twenty-two billion, one hundred one million, two hundred twenty thousand, one hundred eleven".