2122102011111 has 16 divisors (see below), whose sum is σ = 2882910328416. Its totient is φ = 1388015198336.

The previous prime is 2122102011103. The next prime is 2122102011121. The reversal of 2122102011111 is 1111102012212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2122102011111 - 2³ = 2122102011103 is a prime.

It is a super-2 number, since 2×2122102011111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122102011121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11767621 + ... + 11946593.

It is an arithmetic number, because the mean of its divisors is an integer number (180181895526).

Almost surely, 2^{2122102011111} is an apocalyptic number.

2122102011111 is a deficient number, since it is larger than the sum of its proper divisors (760808317305).

2122102011111 is a wasteful number, since it uses less digits than its factorization.

2122102011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253602.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2122102011111 its reverse (1111102012212), we get a palindrome (3233204023323).

The spelling of 2122102011111 in words is "two trillion, one hundred twenty-two billion, one hundred two million, eleven thousand, one hundred eleven".