21300001214 has 4 divisors (see below), whose sum is σ = 31950001824. Its totient is φ = 10650000606.

The previous prime is 21300001211. The next prime is 21300001231. The reversal of 21300001214 is 41210000312.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300001211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325000302 + ... + 5325000305.

It is an arithmetic number, because the mean of its divisors is an integer number (7987500456).

Almost surely, 2^21300001214 is an apocalyptic number.

21300001214 is a deficient number, since it is larger than the sum of its proper divisors (10650000610).

21300001214 is a wasteful number, since it uses less digits than its factorization.

21300001214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10650000609.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21300001214 its reverse (41210000312), we get a palindrome (62510001526).

The spelling of 21300001214 in words is "twenty-one billion, three hundred million, one thousand, two hundred fourteen".