1012314221 has 4 divisors (see below), whose sum is σ = 1012382592. Its totient is φ = 1012245852.

The previous prime is 1012314211. The next prime is 1012314241. The reversal of 1012314221 is 1224132101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012314221 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 1012314221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012314211) 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, 1661 + ... + 45026.

It is an arithmetic number, because the mean of its divisors is an integer number (253095648).

Almost surely, 2^1012314221 is an apocalyptic number.

It is an amenable number.

1012314221 is a deficient number, since it is larger than the sum of its proper divisors (68371).

1012314221 is an equidigital number, since it uses as much as digits as its factorization.

1012314221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68370.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1012314221 is about 31816.8857841241. The cubic root of 1012314221 is about 1004.0880057695.

Adding to 1012314221 its reverse (1224132101), we get a palindrome (2236446322).

The spelling of 1012314221 in words is "one billion, twelve million, three hundred fourteen thousand, two hundred twenty-one".