70222172 has 12 divisors (see below), whose sum is σ = 130117680. Its totient is φ = 33045696.

The previous prime is 70222171. The next prime is 70222177. The reversal of 70222172 is 27122207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70222171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516272 + ... + 516407.

It is an arithmetic number, because the mean of its divisors is an integer number (10843140).

Almost surely, 2^70222172 is an apocalyptic number.

It is an amenable number.

70222172 is a deficient number, since it is larger than the sum of its proper divisors (59895508).

70222172 is a wasteful number, since it uses less digits than its factorization.

70222172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032700 (or 1032698 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 70222172 is about 8379.8670633847. The cubic root of 70222172 is about 412.5640857885.

Adding to 70222172 its reverse (27122207), we get a palindrome (97344379).

The spelling of 70222172 in words is "seventy million, two hundred twenty-two thousand, one hundred seventy-two".