21220210122003 has 24 divisors (see below), whose sum is σ = 30784999190400. Its totient is φ = 14085219475584.

The previous prime is 21220210121989. The next prime is 21220210122071. The reversal of 21220210122003 is 30022101202212.

21220210122003 is a `hidden beast` number, since 21 + 220 + 210 + 12 + 200 + 3 = 666.

It is not a de Polignac number, because 21220210122003 - 2³³ = 21211620187411 is a prime.

It is a super-2 number, since 2×21220210122003² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21220210120003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 996943 + ... + 6590471.

It is an arithmetic number, because the mean of its divisors is an integer number (1282708299600).

Almost surely, 2^{21220210122003} is an apocalyptic number.

21220210122003 is a deficient number, since it is larger than the sum of its proper divisors (9564789068397).

21220210122003 is a wasteful number, since it uses less digits than its factorization.

21220210122003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595371 (or 5595368 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 21220210122003 its reverse (30022101202212), we get a palindrome (51242311324215).

The spelling of 21220210122003 in words is "twenty-one trillion, two hundred twenty billion, two hundred ten million, one hundred twenty-two thousand, three".