222011400021 has 8 divisors (see below), whose sum is σ = 296087786880. Its totient is φ = 147971306592.

The previous prime is 222011400007. The next prime is 222011400047. The reversal of 222011400021 is 120004110222.

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

It is not a de Polignac number, because 222011400021 - 2⁹ = 222011399509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222011400521) 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, 9059080 + ... + 9083553.

It is an arithmetic number, because the mean of its divisors is an integer number (37010973360).

Almost surely, 2^222011400021 is an apocalyptic number.

It is an amenable number.

222011400021 is a deficient number, since it is larger than the sum of its proper divisors (74076386859).

222011400021 is a wasteful number, since it uses less digits than its factorization.

222011400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18146715.

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

Adding to 222011400021 its reverse (120004110222), we get a palindrome (342015510243).

The spelling of 222011400021 in words is "two hundred twenty-two billion, eleven million, four hundred thousand, twenty-one".