222012331121020 has 192 divisors, whose sum is σ = 539485842696192. Its totient is φ = 75947034240000.

The previous prime is 222012331121003. The next prime is 222012331121069. The reversal of 222012331121020 is 20121133210222.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 222012331120982 and 222012331121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3056006337 + ... + 3056078983.

It is an arithmetic number, because the mean of its divisors is an integer number (2809822097376).

Almost surely, 2^{222012331121020} is an apocalyptic number.

222012331121020 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 222012331121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269742921348096).

222012331121020 is an abundant number, since it is smaller than the sum of its proper divisors (317473511575172).

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

222012331121020 is a wasteful number, since it uses less digits than its factorization.

222012331121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82652 (or 82650 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 222012331121020 its reverse (20121133210222), we get a palindrome (242133464331242).

The spelling of 222012331121020 in words is "two hundred twenty-two trillion, twelve billion, three hundred thirty-one million, one hundred twenty-one thousand, twenty".