21114120001 has 8 divisors (see below), whose sum is σ = 22741523840. Its totient is φ = 19487179152.

The previous prime is 21114119981. The next prime is 21114120011. The reversal of 21114120001 is 10002141112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21114120001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21114120011) 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, 17961 + ... + 206278.

It is an arithmetic number, because the mean of its divisors is an integer number (2842690480).

Almost surely, 2^21114120001 is an apocalyptic number.

It is an amenable number.

21114120001 is a deficient number, since it is larger than the sum of its proper divisors (1627403839).

21114120001 is a wasteful number, since it uses less digits than its factorization.

21114120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231495.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21114120001 its reverse (10002141112), we get a palindrome (31116261113).

The spelling of 21114120001 in words is "twenty-one billion, one hundred fourteen million, one hundred twenty thousand, one".