1142022000 has 160 divisors (see below), whose sum is σ = 4208016384. Its totient is φ = 261024000.

The previous prime is 1142021987. The next prime is 1142022023. The reversal of 1142022000 is 2202411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28405 + ... + 55595.

Almost surely, 2^1142022000 is an apocalyptic number.

1142022000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104008192).

1142022000 is an abundant number, since it is smaller than the sum of its proper divisors (3065994384).

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

1142022000 is a wasteful number, since it uses less digits than its factorization.

1142022000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27224 (or 27208 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1142022000 is about 33793.8160023398. The cubic root of 1142022000 is about 1045.2611848386.

Adding to 1142022000 its reverse (2202411), we get a palindrome (1144224411).

The spelling of 1142022000 in words is "one billion, one hundred forty-two million, twenty-two thousand".