101222021999 has 6 divisors (see below), whose sum is σ = 117748066464. Its totient is φ = 86761733100.

The previous prime is 101222021983. The next prime is 101222022029. The reversal of 101222021999 is 999120222101.

It is a happy number.

It is not a de Polignac number, because 101222021999 - 2⁴ = 101222021983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101222021909) 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 5 ways as a sum of consecutive naturals, for example, 1032877727 + ... + 1032877824.

It is an arithmetic number, because the mean of its divisors is an integer number (19624677744).

Almost surely, 2^101222021999 is an apocalyptic number.

101222021999 is a deficient number, since it is larger than the sum of its proper divisors (16526044465).

101222021999 is an equidigital number, since it uses as much as digits as its factorization.

101222021999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065755565 (or 2065755558 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 101222021999 in words is "one hundred one billion, two hundred twenty-two million, twenty-one thousand, nine hundred ninety-nine".