11221210103021 has 4 divisors (see below), whose sum is σ = 11221338241344. Its totient is φ = 11221081964700.

The previous prime is 11221210103009. The next prime is 11221210103023. The reversal of 11221210103021 is 12030101212211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11221210103021 - 2²⁶ = 11221142994157 is a prime.

It is a super-2 number, since 2×11221210103021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221210103023) 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, 63937715 + ... + 64112976.

It is an arithmetic number, because the mean of its divisors is an integer number (2805334560336).

Almost surely, 2^{11221210103021} is an apocalyptic number.

It is an amenable number.

11221210103021 is a deficient number, since it is larger than the sum of its proper divisors (128138323).

11221210103021 is an equidigital number, since it uses as much as digits as its factorization.

11221210103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128138322.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11221210103021 its reverse (12030101212211), we get a palindrome (23251311315232).

The spelling of 11221210103021 in words is "eleven trillion, two hundred twenty-one billion, two hundred ten million, one hundred three thousand, twenty-one".