2221210122111 has 12 divisors (see below), whose sum is σ = 3295128529992. Its totient is φ = 1440784943856.

The previous prime is 2221210122107. The next prime is 2221210122121. The reversal of 2221210122111 is 1112210121222.

2221210122111 is a `hidden beast` number, since 2 + 221 + 210 + 1 + 221 + 11 = 666.

It is not a de Polignac number, because 2221210122111 - 2² = 2221210122107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221210122121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3335150001 + ... + 3335150666.

It is an arithmetic number, because the mean of its divisors is an integer number (274594044166).

Almost surely, 2^{2221210122111} is an apocalyptic number.

2221210122111 is a deficient number, since it is larger than the sum of its proper divisors (1073918407881).

2221210122111 is a wasteful number, since it uses less digits than its factorization.

2221210122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670300710 (or 6670300707 counting only the distinct ones).

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

Adding to 2221210122111 its reverse (1112210121222), we get a palindrome (3333420243333).

The spelling of 2221210122111 in words is "two trillion, two hundred twenty-one billion, two hundred ten million, one hundred twenty-two thousand, one hundred eleven".