111021099690 has 32 divisors (see below), whose sum is σ = 271478013696. Its totient is φ = 29047029440.

The previous prime is 111021099689. The next prime is 111021099733. The reversal of 111021099690 is 96990120111.

It is a super-2 number, since 2×111021099690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34910706 + ... + 34913885.

It is an arithmetic number, because the mean of its divisors is an integer number (8483687928).

Almost surely, 2^111021099690 is an apocalyptic number.

111021099690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111021099690 is an abundant number, since it is smaller than the sum of its proper divisors (160456914006).

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

111021099690 is a wasteful number, since it uses less digits than its factorization.

111021099690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69824654.

The product of its (nonzero) digits is 8748, while the sum is 39.

The spelling of 111021099690 in words is "one hundred eleven billion, twenty-one million, ninety-nine thousand, six hundred ninety".