7121201012 has 24 divisors (see below), whose sum is σ = 12545317512. Its totient is φ = 3536870400.

The previous prime is 7121200987. The next prime is 7121201063. The reversal of 7121201012 is 2101021217.

It can be written as a sum of positive squares in 4 ways, for example, as 12013156 + 7109187856 = 3466^2 + 84316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684812 + ... + 695132.

It is an arithmetic number, because the mean of its divisors is an integer number (522721563).

Almost surely, 2^7121201012 is an apocalyptic number.

It is an amenable number.

7121201012 is a deficient number, since it is larger than the sum of its proper divisors (5424116500).

7121201012 is a wasteful number, since it uses less digits than its factorization.

7121201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11459 (or 11457 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 7121201012 is about 84387.2088174505. The cubic root of 7121201012 is about 1923.9085069512.

Adding to 7121201012 its reverse (2101021217), we get a palindrome (9222222229).

The spelling of 7121201012 in words is "seven billion, one hundred twenty-one million, two hundred one thousand, twelve".