21122101002203 has 8 divisors (see below), whose sum is σ = 21222961692240. Its totient is φ = 21021448488480.

The previous prime is 21122101002181. The next prime is 21122101002239. The reversal of 21122101002203 is 30220010122112.

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 21122101002203 - 2¹⁶ = 21122100936667 is a prime.

It is a super-2 number, since 2×21122101002203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21122101002263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51840668 + ... + 52246521.

It is an arithmetic number, because the mean of its divisors is an integer number (2652870211530).

Almost surely, 2^{21122101002203} is an apocalyptic number.

21122101002203 is a deficient number, since it is larger than the sum of its proper divisors (100860690037).

21122101002203 is a wasteful number, since it uses less digits than its factorization.

21122101002203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104088157.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21122101002203 its reverse (30220010122112), we get a palindrome (51342111124315).

The spelling of 21122101002203 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred one million, two thousand, two hundred three".