221400214233 has 16 divisors (see below), whose sum is σ = 336038270976. Its totient is φ = 128347949840.

The previous prime is 221400214193. The next prime is 221400214253. The reversal of 221400214233 is 332412004122.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-221400214233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221400214253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145849185 + ... + 145850702.

It is an arithmetic number, because the mean of its divisors is an integer number (21002391936).

Almost surely, 2^221400214233 is an apocalyptic number.

221400214233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

221400214233 is a deficient number, since it is larger than the sum of its proper divisors (114638056743).

221400214233 is a wasteful number, since it uses less digits than its factorization.

221400214233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291699924.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 221400214233 its reverse (332412004122), we get a palindrome (553812218355).

The spelling of 221400214233 in words is "two hundred twenty-one billion, four hundred million, two hundred fourteen thousand, two hundred thirty-three".