222200121021111 has 160 divisors (see below), whose sum is σ = 371209666544640. Its totient is φ = 131808677704704.

The previous prime is 222200121021091. The next prime is 222200121021181. The reversal of 222200121021111 is 111120121002222.

222200121021111 is a `hidden beast` number, since 22 + 220 + 0 + 1 + 210 + 211 + 1 + 1 = 666.

It is not a de Polignac number, because 222200121021111 - 2¹⁴ = 222200121004727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222200121021181) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 446561686 + ... + 447058988.

It is an arithmetic number, because the mean of its divisors is an integer number (2320060415904).

Almost surely, 2^{222200121021111} is an apocalyptic number.

222200121021111 is a deficient number, since it is larger than the sum of its proper divisors (149009545523529).

222200121021111 is a wasteful number, since it uses less digits than its factorization.

222200121021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497595 (or 497586 counting only the distinct ones).

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

Adding to 222200121021111 its reverse (111120121002222), we get a palindrome (333320242023333).

The spelling of 222200121021111 in words is "two hundred twenty-two trillion, two hundred billion, one hundred twenty-one million, twenty-one thousand, one hundred eleven".