221220212000222 has 16 divisors (see below), whose sum is σ = 332045485263600. Its totient is φ = 110538385698240.

The previous prime is 221220212000213. The next prime is 221220212000273. The reversal of 221220212000222 is 222000212022122.

221220212000222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221220212000194 and 221220212000203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223626572 + ... + 224613632.

It is an arithmetic number, because the mean of its divisors is an integer number (20752842828975).

Almost surely, 2^{221220212000222} is an apocalyptic number.

221220212000222 is a deficient number, since it is larger than the sum of its proper divisors (110825273263378).

221220212000222 is a wasteful number, since it uses less digits than its factorization.

221220212000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059611.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221220212000222 its reverse (222000212022122), we get a palindrome (443220424022344).

The spelling of 221220212000222 in words is "two hundred twenty-one trillion, two hundred twenty billion, two hundred twelve million, two hundred twenty-two", and thus it is an aban number.