2211110202121 has 8 divisors (see below), whose sum is σ = 2220725643264. Its totient is φ = 2201514773760.

The previous prime is 2211110202083. The next prime is 2211110202127. The reversal of 2211110202121 is 1212020111122.

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

It is a cyclic number.

It is not a de Polignac number, because 2211110202121 - 2²³ = 2211101813513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211110202095 and 2211110202104.

It is not an unprimeable number, because it can be changed into a prime (2211110202127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4781725 + ... + 5223706.

It is an arithmetic number, because the mean of its divisors is an integer number (277590705408).

Almost surely, 2^{2211110202121} is an apocalyptic number.

It is an amenable number.

2211110202121 is a deficient number, since it is larger than the sum of its proper divisors (9615441143).

2211110202121 is a wasteful number, since it uses less digits than its factorization.

2211110202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006391.

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

Adding to 2211110202121 its reverse (1212020111122), we get a palindrome (3423130313243).

Subtracting from 2211110202121 its reverse (1212020111122), we obtain a palindrome (999090090999).

The spelling of 2211110202121 in words is "two trillion, two hundred eleven billion, one hundred ten million, two hundred two thousand, one hundred twenty-one".