101221021020199 has 2 divisors, whose sum is σ = 101221021020200. Its totient is φ = 101221021020198.

The previous prime is 101221021020149. The next prime is 101221021020239. The reversal of 101221021020199 is 991020120122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101221021020199 - 2¹⁹ = 101221020495911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101221021020199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101221021020149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610510510099 + 50610510510100.

It is an arithmetic number, because the mean of its divisors is an integer number (50610510510100).

Almost surely, 2^{101221021020199} is an apocalyptic number.

101221021020199 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221021020199 is an equidigital number, since it uses as much as digits as its factorization.

101221021020199 is an evil number, because the sum of its binary digits is even.

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

The spelling of 101221021020199 in words is "one hundred one trillion, two hundred twenty-one billion, twenty-one million, twenty thousand, one hundred ninety-nine".