212221219963 has 2 divisors, whose sum is σ = 212221219964. Its totient is φ = 212221219962.

The previous prime is 212221219961. The next prime is 212221219981. The reversal of 212221219963 is 369912122212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212221219963 - 2¹ = 212221219961 is a prime.

Together with 212221219961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212221219961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110609981 + 106110609982.

It is an arithmetic number, because the mean of its divisors is an integer number (106110609982).

Almost surely, 2^212221219963 is an apocalyptic number.

212221219963 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221219963 is an equidigital number, since it uses as much as digits as its factorization.

212221219963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The spelling of 212221219963 in words is "two hundred twelve billion, two hundred twenty-one million, two hundred nineteen thousand, nine hundred sixty-three".