11222230022221 has 16 divisors (see below), whose sum is σ = 11381398898688. Its totient is φ = 11064257467200.

The previous prime is 11222230022147. The next prime is 11222230022249. The reversal of 11222230022221 is 12222003222211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11222230022221 - 2¹³ = 11222230014029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222230022192 and 11222230022201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222230082221) 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, 31383366 + ... + 31738936.

It is an arithmetic number, because the mean of its divisors is an integer number (711337431168).

Almost surely, 2^{11222230022221} is an apocalyptic number.

It is an amenable number.

11222230022221 is a deficient number, since it is larger than the sum of its proper divisors (159168876467).

11222230022221 is a wasteful number, since it uses less digits than its factorization.

11222230022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357252.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 11222230022221 its reverse (12222003222211), we get a palindrome (23444233244432).

The spelling of 11222230022221 in words is "eleven trillion, two hundred twenty-two billion, two hundred thirty million, twenty-two thousand, two hundred twenty-one".