21002222103311 has 8 divisors (see below), whose sum is σ = 21034041593904. Its totient is φ = 20970404965120.

The previous prime is 21002222103277. The next prime is 21002222103347. The reversal of 21002222103311 is 11330122220012.

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 21002222103311 - 2¹⁰ = 21002222102287 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 (21002222193311) 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, 17712191 + ... + 18860703.

It is an arithmetic number, because the mean of its divisors is an integer number (2629255199238).

Almost surely, 2^{21002222103311} is an apocalyptic number.

21002222103311 is a deficient number, since it is larger than the sum of its proper divisors (31819490593).

21002222103311 is a wasteful number, since it uses less digits than its factorization.

21002222103311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176201.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21002222103311 its reverse (11330122220012), we get a palindrome (32332344323323).

The spelling of 21002222103311 in words is "twenty-one trillion, two billion, two hundred twenty-two million, one hundred three thousand, three hundred eleven".