221120012221222 has 8 divisors (see below), whose sum is σ = 331701172790400. Its totient is φ = 110552954624424.

The previous prime is 221120012221201. The next prime is 221120012221237. The reversal of 221120012221222 is 222122210021122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221120012221193 and 221120012221202.

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, 3525703897 + ... + 3525766612.

It is an arithmetic number, because the mean of its divisors is an integer number (41462646598800).

Almost surely, 2^{221120012221222} is an apocalyptic number.

221120012221222 is a deficient number, since it is larger than the sum of its proper divisors (110581160569178).

221120012221222 is a wasteful number, since it uses less digits than its factorization.

221120012221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051486190.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 221120012221222 its reverse (222122210021122), we get a palindrome (443242222242344).

The spelling of 221120012221222 in words is "two hundred twenty-one trillion, one hundred twenty billion, twelve million, two hundred twenty-one thousand, two hundred twenty-two".