101212100090 has 16 divisors (see below), whose sum is σ = 183616284672. Its totient is φ = 40166061264.

The previous prime is 101212100089. The next prime is 101212100183. The reversal of 101212100090 is 90001212101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39846014 + ... + 39848553.

It is an arithmetic number, because the mean of its divisors is an integer number (11476017792).

Almost surely, 2^101212100090 is an apocalyptic number.

101212100090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101212100090 is a deficient number, since it is larger than the sum of its proper divisors (82404184582).

101212100090 is a wasteful number, since it uses less digits than its factorization.

101212100090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79694701.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 101212100090 its reverse (90001212101), we get a palindrome (191213312191).

The spelling of 101212100090 in words is "one hundred one billion, two hundred twelve million, one hundred thousand, ninety".