1022115000 has 80 divisors (see below), whose sum is σ = 3193134120. Its totient is φ = 272560000.

The previous prime is 1022114999. The next prime is 1022115007. The reversal of 1022115000 is 5112201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022115007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19071 + ... + 49070.

Almost surely, 2^1022115000 is an apocalyptic number.

1022115000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022115000 is an abundant number, since it is smaller than the sum of its proper divisors (2171019120).

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

1022115000 is an equidigital number, since it uses as much as digits as its factorization.

1022115000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68170 (or 68151 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1022115000 is about 31970.5333080323. The cubic root of 1022115000 is about 1007.3179831562.

Adding to 1022115000 its reverse (5112201), we get a palindrome (1027227201).

The spelling of 1022115000 in words is "one billion, twenty-two million, one hundred fifteen thousand".