105715701021 has 16 divisors (see below), whose sum is σ = 168094531584. Its totient is φ = 57782494704.

The previous prime is 105715701011. The next prime is 105715701071. The reversal of 105715701021 is 120107517501.

It is not a de Polignac number, because 105715701021 - 2⁶ = 105715700957 is a prime.

It is a super-2 number, since 2×105715701021² (a number of 23 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 105715701021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105715701011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109436061 + ... + 109437026.

It is an arithmetic number, because the mean of its divisors is an integer number (10505908224).

Almost surely, 2^105715701021 is an apocalyptic number.

It is an amenable number.

105715701021 is a deficient number, since it is larger than the sum of its proper divisors (62378830563).

105715701021 is a wasteful number, since it uses less digits than its factorization.

105715701021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218873120.

The product of its (nonzero) digits is 2450, while the sum is 30.

The spelling of 105715701021 in words is "one hundred five billion, seven hundred fifteen million, seven hundred one thousand, twenty-one".