222001021112020 has 12 divisors (see below), whose sum is σ = 466202144335284. Its totient is φ = 88800408444800.

The previous prime is 222001021111999. The next prime is 222001021112041. The reversal of 222001021112020 is 20211120100222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222001021111999) and next prime (222001021112041).

It can be written as a sum of positive squares in 2 ways, for example, as 72366769141956 + 149634251970064 = 8506866^2 + 12232508^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222001021111985 and 222001021112003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550025527781 + ... + 5550025527820.

It is an arithmetic number, because the mean of its divisors is an integer number (38850178694607).

Almost surely, 2^{222001021112020} is an apocalyptic number.

222001021112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222001021112020 is an abundant number, since it is smaller than the sum of its proper divisors (244201123223264).

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

222001021112020 is a wasteful number, since it uses less digits than its factorization.

222001021112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100051055610 (or 11100051055608 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222001021112020 its reverse (20211120100222), we get a palindrome (242212141212242).

The spelling of 222001021112020 in words is "two hundred twenty-two trillion, one billion, twenty-one million, one hundred twelve thousand, twenty".