1201223310120 has 384 divisors, whose sum is σ = 4297129574400. Its totient is φ = 289662912000.

The previous prime is 1201223310061. The next prime is 1201223310149. The reversal of 1201223310120 is 210133221021.

1201223310120 is a `hidden beast` number, since 12 + 0 + 1 + 223 + 310 + 120 = 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 = 1201223310093 and 1201223310102.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77236345 + ... + 77251895.

It is an arithmetic number, because the mean of its divisors is an integer number (11190441600).

Almost surely, 2^{1201223310120} is an apocalyptic number.

1201223310120 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 1201223310120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2148564787200).

1201223310120 is an abundant number, since it is smaller than the sum of its proper divisors (3095906264280).

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

1201223310120 is a wasteful number, since it uses less digits than its factorization.

1201223310120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101 (or 16094 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1201223310120 its reverse (210133221021), we get a palindrome (1411356531141).

The spelling of 1201223310120 in words is "one trillion, two hundred one billion, two hundred twenty-three million, three hundred ten thousand, one hundred twenty".