11112221122023 has 16 divisors (see below), whose sum is σ = 17164866027776. Its totient is φ = 6262856521920.

The previous prime is 11112221121943. The next prime is 11112221122027. The reversal of 11112221122023 is 32022112221111.

It is not a de Polignac number, because 11112221122023 - 2²¹ = 11112219024871 is a prime.

It is a super-2 number, since 2×11112221122023² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112221122027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3624336733 + ... + 3624339798.

It is an arithmetic number, because the mean of its divisors is an integer number (1072804126736).

Almost surely, 2^{11112221122023} is an apocalyptic number.

11112221122023 is a deficient number, since it is larger than the sum of its proper divisors (6052644905753).

11112221122023 is an equidigital number, since it uses as much as digits as its factorization.

11112221122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7248676614.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11112221122023 its reverse (32022112221111), we get a palindrome (43134333343134).

The spelling of 11112221122023 in words is "eleven trillion, one hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, twenty-three".