21201120214 has 4 divisors (see below), whose sum is σ = 31801680324. Its totient is φ = 10600560106.

The previous prime is 21201120203. The next prime is 21201120221. The reversal of 21201120214 is 41202110212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5300280052 + ... + 5300280055.

It is an arithmetic number, because the mean of its divisors is an integer number (7950420081).

Almost surely, 2^21201120214 is an apocalyptic number.

21201120214 is a deficient number, since it is larger than the sum of its proper divisors (10600560110).

21201120214 is a wasteful number, since it uses less digits than its factorization.

21201120214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10600560109.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21201120214 its reverse (41202110212), we get a palindrome (62403230426).

The spelling of 21201120214 in words is "twenty-one billion, two hundred one million, one hundred twenty thousand, two hundred fourteen".