222201201020220 has 96 divisors (see below), whose sum is σ = 691297615391040. Its totient is φ = 59253225891840.

The previous prime is 222201201020147. The next prime is 222201201020291. The reversal of 222201201020220 is 22020102102222.

222201201020220 is a `hidden beast` number, since 2 + 2 + 220 + 1 + 201 + 0 + 20 + 220 = 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 = 222201201020193 and 222201201020202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77255464 + ... + 80080016.

It is an arithmetic number, because the mean of its divisors is an integer number (7201016826990).

Almost surely, 2^{222201201020220} is an apocalyptic number.

222201201020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201201020220 is an abundant number, since it is smaller than the sum of its proper divisors (469096414370820).

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

222201201020220 is a wasteful number, since it uses less digits than its factorization.

222201201020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970252 (or 2970244 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222201201020220 its reverse (22020102102222), we get a palindrome (244221303122442).

The spelling of 222201201020220 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred one million, twenty thousand, two hundred twenty".