101021000121099 has 12 divisors (see below), whose sum is σ = 147558764223000. Its totient is φ = 66590621802144.

The previous prime is 101021000121049. The next prime is 101021000121187. The reversal of 101021000121099 is 990121000120101.

It is not a de Polignac number, because 101021000121099 - 2²³ = 101020991732491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101021000121049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63059300149 + ... + 63059301750.

It is an arithmetic number, because the mean of its divisors is an integer number (12296563685250).

Almost surely, 2^{101021000121099} is an apocalyptic number.

101021000121099 is a deficient number, since it is larger than the sum of its proper divisors (46537764101901).

101021000121099 is a wasteful number, since it uses less digits than its factorization.

101021000121099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126118601994 (or 126118601991 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 101021000121099 in words is "one hundred one trillion, twenty-one billion, one hundred twenty-one thousand, ninety-nine".