21400112102 has 8 divisors (see below), whose sum is σ = 32234479200. Its totient is φ = 10655285704.

The previous prime is 21400112101. The next prime is 21400112117. The reversal of 21400112102 is 20121100412.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21400112101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22384577 + ... + 22385532.

It is an arithmetic number, because the mean of its divisors is an integer number (4029309900).

Almost surely, 2^21400112102 is an apocalyptic number.

21400112102 is a deficient number, since it is larger than the sum of its proper divisors (10834367098).

21400112102 is a wasteful number, since it uses less digits than its factorization.

21400112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44770350.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21400112102 its reverse (20121100412), we get a palindrome (41521212514).

The spelling of 21400112102 in words is "twenty-one billion, four hundred million, one hundred twelve thousand, one hundred two".