221021021114 has 8 divisors (see below), whose sum is σ = 331571678880. Its totient is φ = 110497128156.

The previous prime is 221021021113. The next prime is 221021021119. The reversal of 221021021114 is 411120120122.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221021021092 and 221021021101.

It is not an unprimeable number, because it can be changed into a prime (221021021113) 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, 6670544 + ... + 6703595.

It is an arithmetic number, because the mean of its divisors is an integer number (41446459860).

Almost surely, 2^221021021114 is an apocalyptic number.

221021021114 is a deficient number, since it is larger than the sum of its proper divisors (110550657766).

221021021114 is a wasteful number, since it uses less digits than its factorization.

221021021114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13382404.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221021021114 its reverse (411120120122), we get a palindrome (632141141236).

The spelling of 221021021114 in words is "two hundred twenty-one billion, twenty-one million, twenty-one thousand, one hundred fourteen".