21220010301103 has 4 divisors (see below), whose sum is σ = 21620387854008. Its totient is φ = 20819632748200.

The previous prime is 21220010301097. The next prime is 21220010301109. The reversal of 21220010301103 is 30110301002212.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (21220010301097) and next prime (21220010301109).

It is a de Polignac number, because none of the positive numbers 2^k-21220010301103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220010301109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200188776373 + ... + 200188776478.

It is an arithmetic number, because the mean of its divisors is an integer number (5405096963502).

Almost surely, 2^{21220010301103} is an apocalyptic number.

21220010301103 is a deficient number, since it is larger than the sum of its proper divisors (400377552905).

21220010301103 is an equidigital number, since it uses as much as digits as its factorization.

21220010301103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400377552904.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21220010301103 its reverse (30110301002212), we get a palindrome (51330311303315).

The spelling of 21220010301103 in words is "twenty-one trillion, two hundred twenty billion, ten million, three hundred one thousand, one hundred three".