20120122220200 has 48 divisors (see below), whose sum is σ = 46975013496000. Its totient is φ = 8014375024320.

The previous prime is 20120122220189. The next prime is 20120122220249. The reversal of 20120122220200 is 202222102102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210413730 + ... + 210509329.

It is an arithmetic number, because the mean of its divisors is an integer number (978646114500).

Almost surely, 2^{20120122220200} is an apocalyptic number.

20120122220200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120122220200 is an abundant number, since it is smaller than the sum of its proper divisors (26854891275800).

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

20120122220200 is a wasteful number, since it uses less digits than its factorization.

20120122220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420923314 (or 420923305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20120122220200 its reverse (202222102102), we get a palindrome (20322344322302).

The spelling of 20120122220200 in words is "twenty trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, two hundred".