101211021199 has 2 divisors, whose sum is σ = 101211021200. Its totient is φ = 101211021198.

The previous prime is 101211021187. The next prime is 101211021217. The reversal of 101211021199 is 991120112101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101211021199 - 2⁵ = 101211021167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101211021299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605510599 + 50605510600.

It is an arithmetic number, because the mean of its divisors is an integer number (50605510600).

Almost surely, 2^101211021199 is an apocalyptic number.

101211021199 is a deficient number, since it is larger than the sum of its proper divisors (1).

101211021199 is an equidigital number, since it uses as much as digits as its factorization.

101211021199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 101211021199 in words is "one hundred one billion, two hundred eleven million, twenty-one thousand, one hundred ninety-nine".