1231022 has 16 divisors (see below), whose sum is σ = 2010960. Its totient is φ = 561792.

The previous prime is 1231003. The next prime is 1231039. The reversal of 1231022 is 2201321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1230994 and 1231012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2729 + ... + 3147.

It is an arithmetic number, because the mean of its divisors is an integer number (125685).

2^1231022 is an apocalyptic number.

1231022 is a deficient number, since it is larger than the sum of its proper divisors (779938).

1231022 is a wasteful number, since it uses less digits than its factorization.

1231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1231022 is about 1109.5143081547. The cubic root of 1231022 is about 107.1737939023.

Adding to 1231022 its reverse (2201321), we get a palindrome (3432343).

Subtracting 1231022 from its reverse (2201321), we obtain a cube (970299 = 99³).

The spelling of 1231022 in words is "one million, two hundred thirty-one thousand, twenty-two".