1223022120120 has 192 divisors, whose sum is σ = 4152129901920. Its totient is φ = 323758301184.

The previous prime is 1223022120097. The next prime is 1223022120121. The reversal of 1223022120120 is 210212203221.

1223022120120 is a `hidden beast` number, since 1 + 223 + 0 + 221 + 201 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1223022120093 and 1223022120102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223022120121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 872424 + ... + 1790856.

Almost surely, 2^{1223022120120} is an apocalyptic number.

1223022120120 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 1223022120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2076064950960).

1223022120120 is an abundant number, since it is smaller than the sum of its proper divisors (2929107781800).

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

1223022120120 is a wasteful number, since it uses less digits than its factorization.

1223022120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918596 (or 918580 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1223022120120 its reverse (210212203221), we get a palindrome (1433234323341).

It can be divided in two parts, 122302 and 2120120, that added together give a palindrome (2242422).

The spelling of 1223022120120 in words is "one trillion, two hundred twenty-three billion, twenty-two million, one hundred twenty thousand, one hundred twenty".