101212221199 has 4 divisors (see below), whose sum is σ = 101334311560. Its totient is φ = 101090130840.

The previous prime is 101212221181. The next prime is 101212221233. The reversal of 101212221199 is 991122212101.

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 101212221199 - 2⁵ = 101212221167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101212221199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212221179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61043937 + ... + 61045594.

It is an arithmetic number, because the mean of its divisors is an integer number (25333577890).

Almost surely, 2^101212221199 is an apocalyptic number.

101212221199 is a deficient number, since it is larger than the sum of its proper divisors (122090361).

101212221199 is an equidigital number, since it uses as much as digits as its factorization.

101212221199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122090360.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 101212221199 in words is "one hundred one billion, two hundred twelve million, two hundred twenty-one thousand, one hundred ninety-nine".