21220219214 has 8 divisors (see below), whose sum is σ = 31838605848. Its totient is φ = 10607350600.

The previous prime is 21220219211. The next prime is 21220219219. The reversal of 21220219214 is 41291202212.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220219211) 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, 1369877 + ... + 1385280.

It is an arithmetic number, because the mean of its divisors is an integer number (3979825731).

Almost surely, 2^21220219214 is an apocalyptic number.

21220219214 is a deficient number, since it is larger than the sum of its proper divisors (10618386634).

21220219214 is a wasteful number, since it uses less digits than its factorization.

21220219214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759010.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 21220219214 in words is "twenty-one billion, two hundred twenty million, two hundred nineteen thousand, two hundred fourteen".