221222201001 has 8 divisors (see below), whose sum is σ = 295136551200. Its totient is φ = 147394659072.

The previous prime is 221222200919. The next prime is 221222201017. The reversal of 221222201001 is 100102222122.

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

It is not a de Polignac number, because 221222201001 - 2⁷ = 221222200873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221222201021) 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, 21696120 + ... + 21706313.

It is an arithmetic number, because the mean of its divisors is an integer number (36892068900).

Almost surely, 2^221222201001 is an apocalyptic number.

It is an amenable number.

221222201001 is a deficient number, since it is larger than the sum of its proper divisors (73914350199).

221222201001 is a wasteful number, since it uses less digits than its factorization.

221222201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43404135.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221222201001 its reverse (100102222122), we get a palindrome (321324423123).

The spelling of 221222201001 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, one".