222220121212209 has 8 divisors (see below), whose sum is σ = 306510512016960. Its totient is φ = 143038238941136.

The previous prime is 222220121212207. The next prime is 222220121212273. The reversal of 222220121212209 is 902212121022222.

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 222220121212209 - 2¹ = 222220121212207 is a prime.

It is a super-2 number, since 2×222220121212209² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222220121212207) 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, 1277127133317 + ... + 1277127133490.

It is an arithmetic number, because the mean of its divisors is an integer number (38313814002120).

Almost surely, 2^{222220121212209} is an apocalyptic number.

222220121212209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

222220121212209 is a deficient number, since it is larger than the sum of its proper divisors (84290390804751).

222220121212209 is a wasteful number, since it uses less digits than its factorization.

222220121212209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554254266839.

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 222220121212209 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twelve thousand, two hundred nine".