222122212001 has 8 divisors (see below), whose sum is σ = 222282956544. Its totient is φ = 221961517920.

The previous prime is 222122211979. The next prime is 222122212019. The reversal of 222122212001 is 100212221222.

It is a happy number.

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 222122212001 - 2⁶ = 222122211937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222122212601) 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, 13778936 + ... + 13795046.

It is an arithmetic number, because the mean of its divisors is an integer number (27785369568).

Almost surely, 2^222122212001 is an apocalyptic number.

It is an amenable number.

222122212001 is a deficient number, since it is larger than the sum of its proper divisors (160744543).

222122212001 is a wasteful number, since it uses less digits than its factorization.

222122212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25231.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222122212001 its reverse (100212221222), we get a palindrome (322334433223).

The spelling of 222122212001 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, one".