2100111121222 has 8 divisors (see below), whose sum is σ = 3152337717672. Its totient is φ = 1049331882000.

The previous prime is 2100111121193. The next prime is 2100111121223. The reversal of 2100111121222 is 2221211110012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2100111121196 and 2100111121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100111121223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361835679 + ... + 361841482.

It is an arithmetic number, because the mean of its divisors is an integer number (394042214709).

Almost surely, 2^{2100111121222} is an apocalyptic number.

2100111121222 is a deficient number, since it is larger than the sum of its proper divisors (1052226596450).

2100111121222 is a wasteful number, since it uses less digits than its factorization.

2100111121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723678614.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2100111121222 its reverse (2221211110012), we get a palindrome (4321322231234).

The spelling of 2100111121222 in words is "two trillion, one hundred billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-two".