1222011120 has 160 divisors (see below), whose sum is σ = 4174447104. Its totient is φ = 293248000.

The previous prime is 1222011113. The next prime is 1222011169. The reversal of 1222011120 is 211102221.

It is a super-2 number, since 2×1222011120² = 2986622354807308800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1222011096 and 1222011105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264349 + ... + 268931.

Almost surely, 2^1222011120 is an apocalyptic number.

1222011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222011120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2087223552).

1222011120 is an abundant number, since it is smaller than the sum of its proper divisors (2952435984).

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

1222011120 is a wasteful number, since it uses less digits than its factorization.

1222011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711 (or 4705 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1222011120 is about 34957.2756375551. The cubic root of 1222011120 is about 1069.1165503066.

Adding to 1222011120 its reverse (211102221), we get a palindrome (1433113341).

It can be divided in two parts, 122201 and 1120, that added together give a palindrome (123321).

The spelling of 1222011120 in words is "one billion, two hundred twenty-two million, eleven thousand, one hundred twenty".