1031422221 has 32 divisors (see below), whose sum is σ = 1557757440. Its totient is φ = 674308800.

The previous prime is 1031422213. The next prime is 1031422229. The reversal of 1031422221 is 1222241301.

It is a happy number.

1031422221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1031422213) and next prime (1031422229).

It is not a de Polignac number, because 1031422221 - 2³ = 1031422213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031422194 and 1031422203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031422229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 709131 + ... + 710583.

It is an arithmetic number, because the mean of its divisors is an integer number (48679920).

Almost surely, 2^1031422221 is an apocalyptic number.

It is an amenable number.

1031422221 is a deficient number, since it is larger than the sum of its proper divisors (526335219).

1031422221 is a wasteful number, since it uses less digits than its factorization.

1031422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954 (or 1948 counting only the distinct ones).

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

The square root of 1031422221 is about 32115.7628120523. The cubic root of 1031422221 is about 1010.3662433501.

Adding to 1031422221 its reverse (1222241301), we get a palindrome (2253663522).

The spelling of 1031422221 in words is "one billion, thirty-one million, four hundred twenty-two thousand, two hundred twenty-one".