11221210221023 has 4 divisors (see below), whose sum is σ = 12241320241128. Its totient is φ = 10201100200920.

The previous prime is 11221210220999. The next prime is 11221210221037. The reversal of 11221210221023 is 32012201212211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11221210221023 is a prime.

It is a super-2 number, since 2×11221210221023² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11221210220986 and 11221210221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221210221323) 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, 510055010036 + ... + 510055010057.

It is an arithmetic number, because the mean of its divisors is an integer number (3060330060282).

Almost surely, 2^{11221210221023} is an apocalyptic number.

11221210221023 is a deficient number, since it is larger than the sum of its proper divisors (1020110020105).

11221210221023 is a wasteful number, since it uses less digits than its factorization.

11221210221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020110020104.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11221210221023 its reverse (32012201212211), we get a palindrome (43233411433234).

The spelling of 11221210221023 in words is "eleven trillion, two hundred twenty-one billion, two hundred ten million, two hundred twenty-one thousand, twenty-three".