1122111102220 has 24 divisors (see below), whose sum is σ = 2356479946800. Its totient is φ = 448835558592.

The previous prime is 1122111102209. The next prime is 1122111102223. The reversal of 1122111102220 is 222011112211.

It is a junction number, because it is equal to n+sod(n) for n = 1122111102194 and 1122111102203.

It is not an unprimeable number, because it can be changed into a prime (1122111102223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532771 + ... + 1589989.

It is an arithmetic number, because the mean of its divisors is an integer number (98186664450).

Almost surely, 2^{1122111102220} is an apocalyptic number.

1122111102220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122111102220 is an abundant number, since it is smaller than the sum of its proper divisors (1234368844580).

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

1122111102220 is a wasteful number, since it uses less digits than its factorization.

1122111102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110297 (or 1110295 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1122111102220 its reverse (222011112211), we get a palindrome (1344122214431).

Subtracting from 1122111102220 its reverse (222011112211), we obtain a palindrome (900099990009).

The spelling of 1122111102220 in words is "one trillion, one hundred twenty-two billion, one hundred eleven million, one hundred two thousand, two hundred twenty".