2111222110101 has 32 divisors (see below), whose sum is σ = 3116700314112. Its totient is φ = 1262984909760.

The previous prime is 2111222110099. The next prime is 2111222110133. The reversal of 2111222110101 is 1010112221112.

It is a happy number.

It is not a de Polignac number, because 2111222110101 - 2¹ = 2111222110099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111222110171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2629395 + ... + 3337088.

It is an arithmetic number, because the mean of its divisors is an integer number (97396884816).

Almost surely, 2^{2111222110101} is an apocalyptic number.

It is an amenable number.

2111222110101 is a deficient number, since it is larger than the sum of its proper divisors (1005478204011).

2111222110101 is a wasteful number, since it uses less digits than its factorization.

2111222110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5966753.

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

Adding to 2111222110101 its reverse (1010112221112), we get a palindrome (3121334331213).

The spelling of 2111222110101 in words is "two trillion, one hundred eleven billion, two hundred twenty-two million, one hundred ten thousand, one hundred one".