222221012001001 has 32 divisors (see below), whose sum is σ = 258660818978688. Its totient is φ = 189079979996160.

The previous prime is 222221012000941. The next prime is 222221012001013. The reversal of 222221012001001 is 100100210122222.

It is a happy number.

It is not a de Polignac number, because 222221012001001 - 2¹⁵ = 222221011968233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222221012001041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40813635 + ... + 45936856.

It is an arithmetic number, because the mean of its divisors is an integer number (8083150593084).

Almost surely, 2^{222221012001001} is an apocalyptic number.

It is an amenable number.

222221012001001 is a deficient number, since it is larger than the sum of its proper divisors (36439806977687).

222221012001001 is a wasteful number, since it uses less digits than its factorization.

222221012001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86750761.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222221012001001 its reverse (100100210122222), we get a palindrome (322321222123223).

The spelling of 222221012001001 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, twelve million, one thousand, one".