990222211101101 has 4 divisors (see below), whose sum is σ = 1080242412110304. Its totient is φ = 900202010091900.

The previous prime is 990222211101091. The next prime is 990222211101161. The reversal of 990222211101101 is 101101112222099.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 990222211101101 - 2⁴⁶ = 919853466923437 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 (990222211101161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45010100504585 + ... + 45010100504606.

It is an arithmetic number, because the mean of its divisors is an integer number (270060603027576).

Almost surely, 2^{990222211101101} is an apocalyptic number.

It is an amenable number.

990222211101101 is a deficient number, since it is larger than the sum of its proper divisors (90020201009203).

990222211101101 is a wasteful number, since it uses less digits than its factorization.

990222211101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90020201009202.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 990222211101101 in words is "nine hundred ninety trillion, two hundred twenty-two billion, two hundred eleven million, one hundred one thousand, one hundred one".