1101211223 has 16 divisors (see below), whose sum is σ = 1300869120. Its totient is φ = 912664800.

The previous prime is 1101211219. The next prime is 1101211231. The reversal of 1101211223 is 3221121011.

It is a cyclic number.

It is not a de Polignac number, because 1101211223 - 2² = 1101211219 is a prime.

It is a super-2 number, since 2×1101211223² = 2425332315322311458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101211198 and 1101211207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101216223) 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, 3338 + ... + 47048.

It is an arithmetic number, because the mean of its divisors is an integer number (81304320).

Almost surely, 2^1101211223 is an apocalyptic number.

1101211223 is a deficient number, since it is larger than the sum of its proper divisors (199657897).

1101211223 is an equidigital number, since it uses as much as digits as its factorization.

1101211223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43838.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1101211223 is about 33184.5027535445. The cubic root of 1101211223 is about 1032.6588617546.

Adding to 1101211223 its reverse (3221121011), we get a palindrome (4322332234).

The spelling of 1101211223 in words is "one billion, one hundred one million, two hundred eleven thousand, two hundred twenty-three".