11000222122121 has 8 divisors (see below), whose sum is σ = 11585008690080. Its totient is φ = 10416018305088.

The previous prime is 11000222122103. The next prime is 11000222122151. The reversal of 11000222122121 is 12122122200011.

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 11000222122121 - 2¹⁴ = 11000222105737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11000222122121.

It is not an unprimeable number, because it can be changed into a prime (11000222122151) 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, 145648976 + ... + 145724481.

It is an arithmetic number, because the mean of its divisors is an integer number (1448126086260).

Almost surely, 2^{11000222122121} is an apocalyptic number.

It is an amenable number.

11000222122121 is a deficient number, since it is larger than the sum of its proper divisors (584786567959).

11000222122121 is a wasteful number, since it uses less digits than its factorization.

11000222122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291375463.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11000222122121 its reverse (12122122200011), we get a palindrome (23122344322132).

The spelling of 11000222122121 in words is "eleven trillion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".