70121200 has 30 divisors (see below), whose sum is σ = 168467144. Its totient is φ = 28048320.

The previous prime is 70121197. The next prime is 70121201. The reversal of 70121200 is 212107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70121201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87252 + ... + 88051.

Almost surely, 2^70121200 is an apocalyptic number.

It is an amenable number.

70121200 is an abundant number, since it is smaller than the sum of its proper divisors (98345944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70121200 is a wasteful number, since it uses less digits than its factorization.

70121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175321 (or 175310 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 70121200 is about 8373.8402182034. The cubic root of 70121200 is about 412.3662498726.

Adding to 70121200 its reverse (212107), we get a palindrome (70333307).

The spelling of 70121200 in words is "seventy million, one hundred twenty-one thousand, two hundred".