105070221 has 24 divisors (see below), whose sum is σ = 155675520. Its totient is φ = 68261856.

The previous prime is 105070213. The next prime is 105070267. The reversal of 105070221 is 122070501.

It is not a de Polignac number, because 105070221 - 2³ = 105070213 is a prime.

It is a super-2 number, since 2×105070221² = 22079502681977682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105070194 and 105070203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105070211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79000 + ... + 80318.

It is an arithmetic number, because the mean of its divisors is an integer number (6486480).

Almost surely, 2^105070221 is an apocalyptic number.

It is an amenable number.

105070221 is a deficient number, since it is larger than the sum of its proper divisors (50605299).

105070221 is a wasteful number, since it uses less digits than its factorization.

105070221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 105070221 is about 10250.3766272269. The cubic root of 105070221 is about 471.8745432272.

The spelling of 105070221 in words is "one hundred five million, seventy thousand, two hundred twenty-one".