1122025990 has 8 divisors (see below), whose sum is σ = 2019646800. Its totient is φ = 448810392.

The previous prime is 1122025963. The next prime is 1122025991. The reversal of 1122025990 is 995202211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122025991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56101290 + ... + 56101309.

It is an arithmetic number, because the mean of its divisors is an integer number (252455850).

Almost surely, 2^1122025990 is an apocalyptic number.

1122025990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122025990 is a deficient number, since it is larger than the sum of its proper divisors (897620810).

1122025990 is a wasteful number, since it uses less digits than its factorization.

1122025990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112202606.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1122025990 is about 33496.6564003036. The cubic root of 1122025990 is about 1039.1246301470.

The spelling of 1122025990 in words is "one billion, one hundred twenty-two million, twenty-five thousand, nine hundred ninety".