105702155221 has 8 divisors (see below), whose sum is σ = 113892809184. Its totient is φ = 97520032560.

The previous prime is 105702155147. The next prime is 105702155231. The reversal of 105702155221 is 122551207501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105702155221 - 2⁹ = 105702154709 is a prime.

It is a super-2 number, since 2×105702155221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105702155231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107075 + ... + 2156656.

It is an arithmetic number, because the mean of its divisors is an integer number (14236601148).

Almost surely, 2^105702155221 is an apocalyptic number.

It is an amenable number.

105702155221 is a deficient number, since it is larger than the sum of its proper divisors (8190653963).

105702155221 is a wasteful number, since it uses less digits than its factorization.

105702155221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265651.

The product of its (nonzero) digits is 7000, while the sum is 31.

The spelling of 105702155221 in words is "one hundred five billion, seven hundred two million, one hundred fifty-five thousand, two hundred twenty-one".