101221102021099 has 2 divisors, whose sum is σ = 101221102021100. Its totient is φ = 101221102021098.

The previous prime is 101221102020967. The next prime is 101221102021177. The reversal of 101221102021099 is 990120201122101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101221102021099 - 2¹³ = 101221102012907 is a prime.

It is a super-2 number, since 2×101221102021099² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101221102021099.

It is not a weakly prime, because it can be changed into another prime (101228102021099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610551010549 + 50610551010550.

It is an arithmetic number, because the mean of its divisors is an integer number (50610551010550).

Almost surely, 2^{101221102021099} is an apocalyptic number.

101221102021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221102021099 is an equidigital number, since it uses as much as digits as its factorization.

101221102021099 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 101221102021099 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred two million, twenty-one thousand, ninety-nine".