222201011212020 has 288 divisors, whose sum is σ = 696998414706048. Its totient is φ = 57255439389696.

The previous prime is 222201011212009. The next prime is 222201011212021. The reversal of 222201011212020 is 20212110102222.

It is a happy number.

222201011212020 is a `hidden beast` number, since 22 + 220 + 101 + 121 + 202 + 0 = 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 = 222201011211984 and 222201011212002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201011212021) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1044920947 + ... + 1045133573.

It is an arithmetic number, because the mean of its divisors is an integer number (2420133384396).

Almost surely, 2^{222201011212020} is an apocalyptic number.

222201011212020 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 222201011212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348499207353024).

222201011212020 is an abundant number, since it is smaller than the sum of its proper divisors (474797403494028).

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

222201011212020 is a wasteful number, since it uses less digits than its factorization.

222201011212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213759 (or 213754 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222201011212020 its reverse (20212110102222), we get a palindrome (242413121314242).

The spelling of 222201011212020 in words is "two hundred twenty-two trillion, two hundred one billion, eleven million, two hundred twelve thousand, twenty".