11222102122221 has 8 divisors (see below), whose sum is σ = 14968330288864. Its totient is φ = 7478637685200.

The previous prime is 11222102122211. The next prime is 11222102122291. The reversal of 11222102122221 is 12222120122211.

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

It is not a de Polignac number, because 11222102122221 - 2⁹ = 11222102121709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222102122211) 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, 690922930 + ... + 690939171.

It is an arithmetic number, because the mean of its divisors is an integer number (1871041286108).

Almost surely, 2^{11222102122221} is an apocalyptic number.

It is an amenable number.

11222102122221 is a deficient number, since it is larger than the sum of its proper divisors (3746228166643).

11222102122221 is a wasteful number, since it uses less digits than its factorization.

11222102122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381864811.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11222102122221 its reverse (12222120122211), we get a palindrome (23444222244432).

The spelling of 11222102122221 in words is "eleven trillion, two hundred twenty-two billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty-one".