2201111102021 has 16 divisors (see below), whose sum is σ = 2403001767936. Its totient is φ = 2003876309376.

The previous prime is 2201111102017. The next prime is 2201111102059. The reversal of 2201111102021 is 1202011111022.

It is a cyclic number.

It is not a de Polignac number, because 2201111102021 - 2² = 2201111102017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201111101987 and 2201111102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201111102011) 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, 35711396 + ... + 35772978.

It is an arithmetic number, because the mean of its divisors is an integer number (150187610496).

Almost surely, 2^{2201111102021} is an apocalyptic number.

It is an amenable number.

2201111102021 is a deficient number, since it is larger than the sum of its proper divisors (201890665915).

2201111102021 is a wasteful number, since it uses less digits than its factorization.

2201111102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99332.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2201111102021 its reverse (1202011111022), we get a palindrome (3403122213043).

Subtracting from 2201111102021 its reverse (1202011111022), we obtain a palindrome (999099990999).

The spelling of 2201111102021 in words is "two trillion, two hundred one billion, one hundred eleven million, one hundred two thousand, twenty-one".