101021220199 has 2 divisors, whose sum is σ = 101021220200. Its totient is φ = 101021220198.

The previous prime is 101021220193. The next prime is 101021220221. The reversal of 101021220199 is 991022120101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101021220199 - 2³¹ = 98873736551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101021220193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510610099 + 50510610100.

It is an arithmetic number, because the mean of its divisors is an integer number (50510610100).

Almost surely, 2^101021220199 is an apocalyptic number.

101021220199 is a deficient number, since it is larger than the sum of its proper divisors (1).

101021220199 is an equidigital number, since it uses as much as digits as its factorization.

101021220199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 101021220199 in words is "one hundred one billion, twenty-one million, two hundred twenty thousand, one hundred ninety-nine".