222022100121020 has 48 divisors (see below), whose sum is σ = 501227943874560. Its totient is φ = 82344590766144.

The previous prime is 222022100120903. The next prime is 222022100121023. The reversal of 222022100121020 is 20121001220222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222022100121020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222022100121023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6215606444 + ... + 6215642163.

It is an arithmetic number, because the mean of its divisors is an integer number (10442248830720).

Almost surely, 2^{222022100121020} is an apocalyptic number.

222022100121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222022100121020 is an abundant number, since it is smaller than the sum of its proper divisors (279205843753540).

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

222022100121020 is a wasteful number, since it uses less digits than its factorization.

222022100121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12431248682 (or 12431248680 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222022100121020 its reverse (20121001220222), we get a palindrome (242143101341242).

The spelling of 222022100121020 in words is "two hundred twenty-two trillion, twenty-two billion, one hundred million, one hundred twenty-one thousand, twenty".