101212112099 has 24 divisors (see below), whose sum is σ = 125005920000. Its totient is φ = 80119825632.

The previous prime is 101212112081. The next prime is 101212112123. The reversal of 101212112099 is 990211212101.

It is not a de Polignac number, because 101212112099 - 2¹² = 101212108003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (101212112399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238349 + ... + 509150.

It is an arithmetic number, because the mean of its divisors is an integer number (5208580000).

Almost surely, 2^101212112099 is an apocalyptic number.

101212112099 is a deficient number, since it is larger than the sum of its proper divisors (23793807901).

101212112099 is an equidigital number, since it uses as much as digits as its factorization.

101212112099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747587 (or 747558 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 101212112099 in words is "one hundred one billion, two hundred twelve million, one hundred twelve thousand, ninety-nine".