11221101234 has 60 divisors (see below), whose sum is σ = 29248673454. Its totient is φ = 3206026656.

The previous prime is 11221101197. The next prime is 11221101257. The reversal of 11221101234 is 43210112211.

11221101234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6251274225 + 4969827009 = 79065^2 + 70497^2 .

It is a super-2 number, since 2×11221101234² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 698859 + ... + 714734.

Almost surely, 2^11221101234 is an apocalyptic number.

11221101234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11221101234 is an abundant number, since it is smaller than the sum of its proper divisors (18027572220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221101234 is a wasteful number, since it uses less digits than its factorization.

11221101234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413621 (or 1413605 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11221101234 its reverse (43210112211), we get a palindrome (54431213445).

The spelling of 11221101234 in words is "eleven billion, two hundred twenty-one million, one hundred one thousand, two hundred thirty-four".