1011103221 has 8 divisors (see below), whose sum is σ = 1419092320. Its totient is φ = 638591472.

The previous prime is 1011103213. The next prime is 1011103229. The reversal of 1011103221 is 1223011101.

It is an interprime number because it is at equal distance from previous prime (1011103213) and next prime (1011103229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1011103221 - 2³ = 1011103213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011103197 and 1011103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011103229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8869270 + ... + 8869383.

It is an arithmetic number, because the mean of its divisors is an integer number (177386540).

Almost surely, 2^1011103221 is an apocalyptic number.

It is an amenable number.

1011103221 is a deficient number, since it is larger than the sum of its proper divisors (407989099).

1011103221 is a wasteful number, since it uses less digits than its factorization.

1011103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17738675.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1011103221 is about 31797.8493140653. The cubic root of 1011103221 is about 1003.6874595952.

Adding to 1011103221 its reverse (1223011101), we get a palindrome (2234114322).

The spelling of 1011103221 in words is "one billion, eleven million, one hundred three thousand, two hundred twenty-one".