201220022001120 has 192 divisors, whose sum is σ = 637116885909504. Its totient is φ = 53381924556800.

The previous prime is 201220022001083. The next prime is 201220022001121. The reversal of 201220022001120 is 21100220022102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201220022001120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220022001121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127946269 + ... + 129509411.

It is an arithmetic number, because the mean of its divisors is an integer number (3318317114112).

Almost surely, 2^{201220022001120} is an apocalyptic number.

201220022001120 is a gapful number since it is divisible by the number (20) 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 201220022001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318558442954752).

201220022001120 is an abundant number, since it is smaller than the sum of its proper divisors (435896863908384).

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

201220022001120 is a wasteful number, since it uses less digits than its factorization.

201220022001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564545 (or 1564537 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201220022001120 its reverse (21100220022102), we get a palindrome (222320242023222).

The spelling of 201220022001120 in words is "two hundred one trillion, two hundred twenty billion, twenty-two million, one thousand, one hundred twenty".