1013422221 has 12 divisors (see below), whose sum is σ = 1672951072. Its totient is φ = 579098376.

The previous prime is 1013422217. The next prime is 1013422243. The reversal of 1013422221 is 1222243101.

It is a happy number.

1013422221 is a `hidden beast` number, since 10 + 13 + 422 + 221 = 666.

It is not a de Polignac number, because 1013422221 - 2² = 1013422217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013422194 and 1013422203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013432221) 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, 8042971 + ... + 8043096.

Almost surely, 2^1013422221 is an apocalyptic number.

It is an amenable number.

1013422221 is a deficient number, since it is larger than the sum of its proper divisors (659528851).

1013422221 is a wasteful number, since it uses less digits than its factorization.

1013422221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16086080 (or 16086077 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1013422221 is about 31834.2931600499. The cubic root of 1013422221 is about 1004.4542042739.

Adding to 1013422221 its reverse (1222243101), we get a palindrome (2235665322).

The spelling of 1013422221 in words is "one billion, thirteen million, four hundred twenty-two thousand, two hundred twenty-one".