1142022100 has 36 divisors (see below), whose sum is σ = 2497729024. Its totient is φ = 453206880.

The previous prime is 1142022067. The next prime is 1142022127. The reversal of 1142022100 is 12202411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32262 + ... + 57661.

Almost surely, 2^1142022100 is an apocalyptic number.

1142022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142022100 is an abundant number, since it is smaller than the sum of its proper divisors (1355706924).

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

1142022100 is a wasteful number, since it uses less digits than its factorization.

1142022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90064 (or 90057 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1142022100 is about 33793.8174819004. The cubic root of 1142022100 is about 1045.2612153477.

Adding to 1142022100 its reverse (12202411), we get a palindrome (1154224511).

The spelling of 1142022100 in words is "one billion, one hundred forty-two million, twenty-two thousand, one hundred".