21202413122 has 8 divisors (see below), whose sum is σ = 34694857872. Its totient is φ = 9637460500.

The previous prime is 21202413103. The next prime is 21202413149. The reversal of 21202413122 is 22131420212.

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

It is a junction number, because it is equal to n+sod(n) for n = 21202413094 and 21202413103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 481873004 + ... + 481873047.

It is an arithmetic number, because the mean of its divisors is an integer number (4336857234).

Almost surely, 2^21202413122 is an apocalyptic number.

21202413122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21202413122 is a deficient number, since it is larger than the sum of its proper divisors (13492444750).

21202413122 is a wasteful number, since it uses less digits than its factorization.

21202413122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963746064.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21202413122 its reverse (22131420212), we get a palindrome (43333833334).

The spelling of 21202413122 in words is "twenty-one billion, two hundred two million, four hundred thirteen thousand, one hundred twenty-two".