21202101220003 has 8 divisors (see below), whose sum is σ = 23138153772336. Its totient is φ = 19267480135200.

The previous prime is 21202101219997. The next prime is 21202101220007. The reversal of 21202101220003 is 30002210120212.

It is a happy number.

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

It is not a de Polignac number, because 21202101220003 - 2³³ = 21193511285411 is a prime.

It is a super-2 number, since 2×21202101220003² (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 (21202101220007) 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, 357835908 + ... + 357895153.

It is an arithmetic number, because the mean of its divisors is an integer number (2892269221542).

Almost surely, 2^{21202101220003} is an apocalyptic number.

21202101220003 is a deficient number, since it is larger than the sum of its proper divisors (1936052552333).

21202101220003 is a wasteful number, since it uses less digits than its factorization.

21202101220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715733765.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21202101220003 its reverse (30002210120212), we get a palindrome (51204311340215).

The spelling of 21202101220003 in words is "twenty-one trillion, two hundred two billion, one hundred one million, two hundred twenty thousand, three".