1122021110 has 24 divisors (see below), whose sum is σ = 2349375840. Its totient is φ = 384692784.

The previous prime is 1122021091. The next prime is 1122021139. The reversal of 1122021110 is 111202211.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1122021091 and 1122021100.

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, 1144430 + ... + 1145409.

It is an arithmetic number, because the mean of its divisors is an integer number (97890660).

Almost surely, 2^1122021110 is an apocalyptic number.

1122021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1122021110 is an abundant number, since it is smaller than the sum of its proper divisors (1227354730).

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

1122021110 is a wasteful number, since it uses less digits than its factorization.

1122021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289860 (or 2289853 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1122021110 is about 33496.5835571331. The cubic root of 1122021110 is about 1039.1231236651.

Adding to 1122021110 its reverse (111202211), we get a palindrome (1233223321).

The spelling of 1122021110 in words is "one billion, one hundred twenty-two million, twenty-one thousand, one hundred ten".