95213021221 has 4 divisors (see below), whose sum is σ = 95215612972. Its totient is φ = 95210429472.

The previous prime is 95213021213. The next prime is 95213021227. The reversal of 95213021221 is 12212031259.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78212512225 + 17000508996 = 279665^2 + 130386^2 .

It is a cyclic number.

It is not a de Polignac number, because 95213021221 - 2³ = 95213021213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 95213021221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (95213021227) 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, 1239966 + ... + 1314511.

It is an arithmetic number, because the mean of its divisors is an integer number (23803903243).

Almost surely, 2^95213021221 is an apocalyptic number.

It is an amenable number.

95213021221 is a deficient number, since it is larger than the sum of its proper divisors (2591751).

95213021221 is a wasteful number, since it uses less digits than its factorization.

95213021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591750.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 95213021221 in words is "ninety-five billion, two hundred thirteen million, twenty-one thousand, two hundred twenty-one".