21222201111249 has 8 divisors (see below), whose sum is σ = 28297631709792. Its totient is φ = 14147452293440.

The previous prime is 21222201111247. The next prime is 21222201111253. The reversal of 21222201111249 is 94211110222212.

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 21222201111249 - 2¹ = 21222201111247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21222201111247) 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, 170372547 + ... + 170497064.

It is an arithmetic number, because the mean of its divisors is an integer number (3537203963724).

Almost surely, 2^{21222201111249} is an apocalyptic number.

It is an amenable number.

21222201111249 is a deficient number, since it is larger than the sum of its proper divisors (7075430598543).

21222201111249 is a wasteful number, since it uses less digits than its factorization.

21222201111249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340890367.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 21222201111249 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred one million, one hundred eleven thousand, two hundred forty-nine".