21140221302111 has 8 divisors (see below), whose sum is σ = 28664706850560. Its totient is φ = 13854608310872.

The previous prime is 21140221302097. The next prime is 21140221302131. The reversal of 21140221302111 is 11120312204112.

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

It is a cyclic number.

It is not a de Polignac number, because 21140221302111 - 2¹¹ = 21140221300063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21140221302131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59718139095 + ... + 59718139448.

It is an arithmetic number, because the mean of its divisors is an integer number (3583088356320).

Almost surely, 2^{21140221302111} is an apocalyptic number.

21140221302111 is a deficient number, since it is larger than the sum of its proper divisors (7524485548449).

21140221302111 is a wasteful number, since it uses less digits than its factorization.

21140221302111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119436278605.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 21140221302111 its reverse (11120312204112), we get a palindrome (32260533506223).

The spelling of 21140221302111 in words is "twenty-one trillion, one hundred forty billion, two hundred twenty-one million, three hundred two thousand, one hundred eleven".