21122002201123 has 8 divisors (see below), whose sum is σ = 21897135870480. Its totient is φ = 20349987782880.

The previous prime is 21122002201117. The next prime is 21122002201141. The reversal of 21122002201123 is 32110220022112.

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 21122002201123 - 2¹³ = 21122002192931 is a prime.

It is a super-2 number, since 2×21122002201123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21122002201123.

It is not an unprimeable number, because it can be changed into a prime (21122002204123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779798988 + ... + 779826073.

It is an arithmetic number, because the mean of its divisors is an integer number (2737141983810).

Almost surely, 2^{21122002201123} is an apocalyptic number.

21122002201123 is a deficient number, since it is larger than the sum of its proper divisors (775133669357).

21122002201123 is a wasteful number, since it uses less digits than its factorization.

21122002201123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559625557.

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

Adding to 21122002201123 its reverse (32110220022112), we get a palindrome (53232222223235).

The spelling of 21122002201123 in words is "twenty-one trillion, one hundred twenty-two billion, two million, two hundred one thousand, one hundred twenty-three".