1022113000 has 32 divisors (see below), whose sum is σ = 2391746760. Its totient is φ = 408844800.

The previous prime is 1022112977. The next prime is 1022113013. The reversal of 1022113000 is 3112201.

It can be written as a sum of positive squares in 4 ways, for example, as 146071396 + 876041604 = 12086^2 + 29598^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 510057 + ... + 512056.

Almost surely, 2^1022113000 is an apocalyptic number.

1022113000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022113000 is an abundant number, since it is smaller than the sum of its proper divisors (1369633760).

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

1022113000 is a wasteful number, since it uses less digits than its factorization.

1022113000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022134 (or 1022120 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1022113000 is about 31970.5020292144. The cubic root of 1022113000 is about 1007.3173261403.

Adding to 1022113000 its reverse (3112201), we get a palindrome (1025225201).

The spelling of 1022113000 in words is "one billion, twenty-two million, one hundred thirteen thousand".