21230201122102 has 16 divisors (see below), whose sum is σ = 36394855754400. Its totient is φ = 9098601308928.

The previous prime is 21230201122079. The next prime is 21230201122139. The reversal of 21230201122102 is 20122110203212.

It is a self number, because there is not a number n which added to its sum of digits gives 21230201122102.

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, 2308393 + ... + 6912964.

It is an arithmetic number, because the mean of its divisors is an integer number (2274678484650).

Almost surely, 2^{21230201122102} is an apocalyptic number.

21230201122102 is a deficient number, since it is larger than the sum of its proper divisors (15164654632298).

21230201122102 is a wasteful number, since it uses less digits than its factorization.

21230201122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9385815.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21230201122102 its reverse (20122110203212), we get a palindrome (41352311325314).

The spelling of 21230201122102 in words is "twenty-one trillion, two hundred thirty billion, two hundred one million, one hundred twenty-two thousand, one hundred two".