222121002210111 has 48 divisors (see below), whose sum is σ = 340339724574720. Its totient is φ = 139349860332480.

The previous prime is 222121002210071. The next prime is 222121002210127. The reversal of 222121002210111 is 111012200121222.

222121002210111 is a `hidden beast` number, since 2 + 221 + 210 + 0 + 221 + 0 + 1 + 11 = 666.

222121002210111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222121002210111 - 2⁷ = 222121002209983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121002210011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11542450 + ... + 24030608.

It is an arithmetic number, because the mean of its divisors is an integer number (7090410928640).

Almost surely, 2^{222121002210111} is an apocalyptic number.

222121002210111 is a deficient number, since it is larger than the sum of its proper divisors (118218722364609).

222121002210111 is a wasteful number, since it uses less digits than its factorization.

222121002210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12489956 (or 12489953 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222121002210111 its reverse (111012200121222), we get a palindrome (333133202331333).

The spelling of 222121002210111 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, two million, two hundred ten thousand, one hundred eleven".