101001021665115 has 48 divisors (see below), whose sum is σ = 191291954109984. Its totient is φ = 45203254440960.

The previous prime is 101001021665111. The next prime is 101001021665123. The reversal of 101001021665115 is 511566120100101.

101001021665115 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 101001021665115 - 2² = 101001021665111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101001021665111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2140282014 + ... + 2140329203.

It is an arithmetic number, because the mean of its divisors is an integer number (3985249043958).

Almost surely, 2^{101001021665115} is an apocalyptic number.

101001021665115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101001021665115 is a deficient number, since it is larger than the sum of its proper divisors (90290932444869).

101001021665115 is a wasteful number, since it uses less digits than its factorization.

101001021665115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4280611260 (or 4280611249 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 30.

Adding to 101001021665115 its reverse (511566120100101), we get a palindrome (612567141765216).

The spelling of 101001021665115 in words is "one hundred one trillion, one billion, twenty-one million, six hundred sixty-five thousand, one hundred fifteen".