221222200019 has 4 divisors (see below), whose sum is σ = 221359692120. Its totient is φ = 221084707920.

The previous prime is 221222199997. The next prime is 221222200037. The reversal of 221222200019 is 910002222122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221222200019 is a prime.

It is a super-2 number, since 2×221222200019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221222199967 and 221222200003.

It is not an unprimeable number, because it can be changed into a prime (221222200219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68743637 + ... + 68746854.

It is an arithmetic number, because the mean of its divisors is an integer number (55339923030).

Almost surely, 2^221222200019 is an apocalyptic number.

221222200019 is a deficient number, since it is larger than the sum of its proper divisors (137492101).

221222200019 is a wasteful number, since it uses less digits than its factorization.

221222200019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137492100.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 221222200019 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred thousand, nineteen".