21344214202102 has 16 divisors (see below), whose sum is σ = 35670021414912. Its totient is φ = 9495491810920.

The previous prime is 21344214202057. The next prime is 21344214202141. The reversal of 21344214202102 is 20120241244312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10321185718 + ... + 10321187785.

It is an arithmetic number, because the mean of its divisors is an integer number (2229376338432).

Almost surely, 2^{21344214202102} is an apocalyptic number.

21344214202102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21344214202102 is a deficient number, since it is larger than the sum of its proper divisors (14325807212810).

21344214202102 is a wasteful number, since it uses less digits than its factorization.

21344214202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20642373563.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 21344214202102 its reverse (20120241244312), we get a palindrome (41464455446414).

The spelling of 21344214202102 in words is "twenty-one trillion, three hundred forty-four billion, two hundred fourteen million, two hundred two thousand, one hundred two".