101212122121199 has 4 divisors (see below), whose sum is σ = 101212404056400. Its totient is φ = 101211840186000.

The previous prime is 101212122121193. The next prime is 101212122121213. The reversal of 101212122121199 is 991121221212101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101212122121199 - 2⁴ = 101212122121183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212122121193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140428427 + ... + 141147324.

It is an arithmetic number, because the mean of its divisors is an integer number (25303101014100).

Almost surely, 2^{101212122121199} is an apocalyptic number.

101212122121199 is a deficient number, since it is larger than the sum of its proper divisors (281935201).

101212122121199 is an equidigital number, since it uses as much as digits as its factorization.

101212122121199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281935200.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 101212122121199 in words is "one hundred one trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred ninety-nine".