2122101210111 has 16 divisors (see below), whose sum is σ = 2859045218400. Its totient is φ = 1399949826048.

The previous prime is 2122101210107. The next prime is 2122101210181. The reversal of 2122101210111 is 1110121012212.

It is a happy number.

It is not a de Polignac number, because 2122101210111 - 2² = 2122101210107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122101210101) 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, 1541275 + ... + 2572883.

It is an arithmetic number, because the mean of its divisors is an integer number (178690326150).

Almost surely, 2^{2122101210111} is an apocalyptic number.

2122101210111 is a deficient number, since it is larger than the sum of its proper divisors (736944008289).

2122101210111 is a wasteful number, since it uses less digits than its factorization.

2122101210111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038778.

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

Adding to 2122101210111 its reverse (1110121012212), we get a palindrome (3232222222323).

The spelling of 2122101210111 in words is "two trillion, one hundred twenty-two billion, one hundred one million, two hundred ten thousand, one hundred eleven".