222012011100021 has 8 divisors (see below), whose sum is σ = 296557177534944. Its totient is φ = 147737426032560.

The previous prime is 222012011100017. The next prime is 222012011100031. The reversal of 222012011100021 is 120001110210222.

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

It is not a de Polignac number, because 222012011100021 - 2² = 222012011100017 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 (222012011100031) 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, 67645339950 + ... + 67645343231.

It is an arithmetic number, because the mean of its divisors is an integer number (37069647191868).

Almost surely, 2^{222012011100021} is an apocalyptic number.

It is an amenable number.

222012011100021 is a deficient number, since it is larger than the sum of its proper divisors (74545166434923).

222012011100021 is a wasteful number, since it uses less digits than its factorization.

222012011100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135290683731.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222012011100021 its reverse (120001110210222), we get a palindrome (342013121310243).

The spelling of 222012011100021 in words is "two hundred twenty-two trillion, twelve billion, eleven million, one hundred thousand, twenty-one".