1220022452000 has 384 divisors, whose sum is σ = 3469620510720. Its totient is φ = 416949120000.

The previous prime is 1220022451939. The next prime is 1220022452063. The reversal of 1220022452000 is 2542200221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 106166255 + ... + 106177745.

It is an arithmetic number, because the mean of its divisors is an integer number (9035470080).

Almost surely, 2^{1220022452000} is an apocalyptic number.

1220022452000 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 1220022452000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1734810255360).

1220022452000 is an abundant number, since it is smaller than the sum of its proper divisors (2249598058720).

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

1220022452000 is a wasteful number, since it uses less digits than its factorization.

1220022452000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11673 (or 11655 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 1220022452000 its reverse (2542200221), we get a palindrome (1222564652221).

The spelling of 1220022452000 in words is "one trillion, two hundred twenty billion, twenty-two million, four hundred fifty-two thousand".