100221112090 has 32 divisors (see below), whose sum is σ = 196886277504. Its totient is φ = 36427659840.

The previous prime is 100221112073. The next prime is 100221112109. The reversal of 100221112090 is 90211122001.

It is a happy number.

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, 42427 + ... + 449713.

It is an arithmetic number, because the mean of its divisors is an integer number (6152696172).

Almost surely, 2^100221112090 is an apocalyptic number.

100221112090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100221112090 is a deficient number, since it is larger than the sum of its proper divisors (96665165414).

100221112090 is a wasteful number, since it uses less digits than its factorization.

100221112090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409542.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 100221112090 its reverse (90211122001), we get a palindrome (190432234091).

The spelling of 100221112090 in words is "one hundred billion, two hundred twenty-one million, one hundred twelve thousand, ninety".