1222101120 has 128 divisors (see below), whose sum is σ = 4000962240. Its totient is φ = 317067264.

The previous prime is 1222101079. The next prime is 1222101137. The reversal of 1222101120 is 211012221.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1222101120² = 2987062295010508800, 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 = 1222101096 and 1222101105.

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, 62439 + ... + 79641.

Almost surely, 2^1222101120 is an apocalyptic number.

1222101120 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 1222101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2000481120).

1222101120 is an abundant number, since it is smaller than the sum of its proper divisors (2778861120).

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

1222101120 is a wasteful number, since it uses less digits than its factorization.

1222101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17262 (or 17250 counting only the distinct ones).

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

The square root of 1222101120 is about 34958.5628995243. The cubic root of 1222101120 is about 1069.1427961472.

Adding to 1222101120 its reverse (211012221), we get a palindrome (1433113341).

It can be divided in two parts, 1222101 and 120, that added together give a palindrome (1222221).

The spelling of 1222101120 in words is "one billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty".