999101022 has 16 divisors (see below), whose sum is σ = 1999665552. Its totient is φ = 332789760.

The previous prime is 999101017. The next prime is 999101023. The reversal of 999101022 is 220101999.

It is a super-2 number, since 2×999101022² = 1996405704322888968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999101023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52003 + ... + 68574.

It is an arithmetic number, because the mean of its divisors is an integer number (124979097).

Almost surely, 2^999101022 is an apocalyptic number.

999101022 is an abundant number, since it is smaller than the sum of its proper divisors (1000564530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999101022 is a wasteful number, since it uses less digits than its factorization.

999101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121963.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 999101022 is about 31608.5593154766. The cubic root of 999101022 is about 999.7002508261.

It can be divided in two parts, 9 and 99101022, that multiplied together give a palindrome (891909198).

The spelling of 999101022 in words is "nine hundred ninety-nine million, one hundred one thousand, twenty-two".