222212002220021 has 8 divisors (see below), whose sum is σ = 242417927404224. Its totient is φ = 202006882714720.

The previous prime is 222212002219979. The next prime is 222212002220051. The reversal of 222212002220021 is 120022200212222.

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 222212002220021 - 2¹⁴ = 222212002203637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222212002219975 and 222212002220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222212002220051) 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, 200842961 + ... + 201946326.

It is an arithmetic number, because the mean of its divisors is an integer number (30302240925528).

Almost surely, 2^{222212002220021} is an apocalyptic number.

It is an amenable number.

222212002220021 is a deficient number, since it is larger than the sum of its proper divisors (20205925184203).

222212002220021 is a wasteful number, since it uses less digits than its factorization.

222212002220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402839451.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222212002220021 its reverse (120022200212222), we get a palindrome (342234202432243).

The spelling of 222212002220021 in words is "two hundred twenty-two trillion, two hundred twelve billion, two million, two hundred twenty thousand, twenty-one".