1122122420 has 48 divisors (see below), whose sum is σ = 2407382208. Its totient is φ = 439246080.

The previous prime is 1122122381. The next prime is 1122122467. The reversal of 1122122420 is 242212211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188327 + ... + 194193.

It is an arithmetic number, because the mean of its divisors is an integer number (50153796).

Almost surely, 2^1122122420 is an apocalyptic number.

1122122420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122122420 is an abundant number, since it is smaller than the sum of its proper divisors (1285259788).

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

1122122420 is a wasteful number, since it uses less digits than its factorization.

1122122420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080 (or 6078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1122122420 is about 33498.0957667746. The cubic root of 1122122420 is about 1039.1543977039.

Adding to 1122122420 its reverse (242212211), we get a palindrome (1364334631).

The spelling of 1122122420 in words is "one billion, one hundred twenty-two million, one hundred twenty-two thousand, four hundred twenty".