21114156701 has 8 divisors (see below), whose sum is σ = 23827888800. Its totient is φ = 18532801840.

The previous prime is 21114156667. The next prime is 21114156703. The reversal of 21114156701 is 10765141112.

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 21114156701 - 2¹⁰ = 21114155677 is a prime.

It is a super-2 number, since 2×21114156701² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114156703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33093971 + ... + 33094608.

It is an arithmetic number, because the mean of its divisors is an integer number (2978486100).

Almost surely, 2^21114156701 is an apocalyptic number.

It is an amenable number.

21114156701 is a deficient number, since it is larger than the sum of its proper divisors (2713732099).

21114156701 is a wasteful number, since it uses less digits than its factorization.

21114156701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66188619.

The product of its (nonzero) digits is 1680, while the sum is 29.

Adding to 21114156701 its reverse (10765141112), we get a palindrome (31879297813).

The spelling of 21114156701 in words is "twenty-one billion, one hundred fourteen million, one hundred fifty-six thousand, seven hundred one".