221210021222219 has 4 divisors (see below), whose sum is σ = 222488691865296. Its totient is φ = 219931350579144.

The previous prime is 221210021222209. The next prime is 221210021222227. The reversal of 221210021222219 is 912222120012122.

221210021222219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 221210021222219 - 2²⁰ = 221210020173643 is a prime.

It is a super-2 number, since 2×221210021222219² (a number of 29 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 = 221210021222191 and 221210021222200.

It is not an unprimeable number, because it can be changed into a prime (221210021222209) 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, 639335321279 + ... + 639335321624.

It is an arithmetic number, because the mean of its divisors is an integer number (55622172966324).

Almost surely, 2^{221210021222219} is an apocalyptic number.

221210021222219 is a deficient number, since it is larger than the sum of its proper divisors (1278670643077).

221210021222219 is a wasteful number, since it uses less digits than its factorization.

221210021222219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278670643076.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 221210021222219 in words is "two hundred twenty-one trillion, two hundred ten billion, twenty-one million, two hundred twenty-two thousand, two hundred nineteen".