222201121212120 has 128 divisors (see below), whose sum is σ = 668184344432640. Its totient is φ = 59113251816960.

The previous prime is 222201121212061. The next prime is 222201121212221. The reversal of 222201121212120 is 21212121102222.

It is a super-3 number, since 3×222201121212120³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92997625 + ... + 95357015.

It is an arithmetic number, because the mean of its divisors is an integer number (5220190190880).

Almost surely, 2^{222201121212120} is an apocalyptic number.

222201121212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201121212120 is an abundant number, since it is smaller than the sum of its proper divisors (445983223220520).

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

222201121212120 is a wasteful number, since it uses less digits than its factorization.

222201121212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361265 (or 2361261 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222201121212120 its reverse (21212121102222), we get a palindrome (243413242314342).

The spelling of 222201121212120 in words is "two hundred twenty-two trillion, two hundred one billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty".