100010121021099 has 16 divisors (see below), whose sum is σ = 149294158611840. Its totient is φ = 66164456652840.

The previous prime is 100010121021091. The next prime is 100010121021133. The reversal of 100010121021099 is 990120121010001.

It is not a de Polignac number, because 100010121021099 - 2³ = 100010121021091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (100010121021091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14137700877 + ... + 14137707950.

It is an arithmetic number, because the mean of its divisors is an integer number (9330884913240).

Almost surely, 2^{100010121021099} is an apocalyptic number.

100010121021099 is a deficient number, since it is larger than the sum of its proper divisors (49284037590741).

100010121021099 is a wasteful number, since it uses less digits than its factorization.

100010121021099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28275408967 (or 28275408961 counting only the distinct ones).

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

The spelling of 100010121021099 in words is "one hundred trillion, ten billion, one hundred twenty-one million, twenty-one thousand, ninety-nine".