1031000022 has 128 divisors (see below), whose sum is σ = 2557941120. Its totient is φ = 305786880.

The previous prime is 1030999993. The next prime is 1031000023. The reversal of 1031000022 is 2200001301.

It is a happy number.

It is a super-2 number, since 2×1031000022² = 2125922090728000968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1030999968 and 1031000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031000023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3252208 + ... + 3252524.

It is an arithmetic number, because the mean of its divisors is an integer number (19983915).

Almost surely, 2^1031000022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031000022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278970560).

1031000022 is an abundant number, since it is smaller than the sum of its proper divisors (1526941098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031000022 is a wasteful number, since it uses less digits than its factorization.

1031000022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1031000022 is about 32109.1890585857. The cubic root of 1031000022 is about 1010.2283645304.

Adding to 1031000022 its reverse (2200001301), we get a palindrome (3231001323).

The spelling of 1031000022 in words is "one billion, thirty-one million, twenty-two", and thus it is an aban number and an uban number.