303212002221 has 12 divisors (see below), whose sum is σ = 445152776380. Its totient is φ = 198827542080.

The previous prime is 303212002211. The next prime is 303212002231. The reversal of 303212002221 is 122200212303.

It is an interprime number because it is at equal distance from previous prime (303212002211) and next prime (303212002231).

It can be written as a sum of positive squares in 2 ways, for example, as 66835175625 + 236376826596 = 258525^2 + 486186^2 .

It is not a de Polignac number, because 303212002221 - 2³⁵ = 268852263853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303212002194 and 303212002203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303212002211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 276148816 + ... + 276149913.

Almost surely, 2^303212002221 is an apocalyptic number.

It is an amenable number.

303212002221 is a deficient number, since it is larger than the sum of its proper divisors (141940774159).

303212002221 is a wasteful number, since it uses less digits than its factorization.

303212002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552298796 (or 552298793 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 303212002221 its reverse (122200212303), we get a palindrome (425412214524).

The spelling of 303212002221 in words is "three hundred three billion, two hundred twelve million, two thousand, two hundred twenty-one".