1221141103 has 36 divisors (see below), whose sum is σ = 1547125920. Its totient is φ = 960575616.

The previous prime is 1221141101. The next prime is 1221141107. The reversal of 1221141103 is 3011411221.

It is not a de Polignac number, because 1221141103 - 2¹ = 1221141101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221141101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1978851 + ... + 1979467.

It is an arithmetic number, because the mean of its divisors is an integer number (42975720).

Almost surely, 2^1221141103 is an apocalyptic number.

1221141103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1221141103 is a deficient number, since it is larger than the sum of its proper divisors (325984817).

1221141103 is a wasteful number, since it uses less digits than its factorization.

1221141103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1221141103 is about 34944.8294172400. The cubic root of 1221141103 is about 1068.8627690909.

Adding to 1221141103 its reverse (3011411221), we get a palindrome (4232552324).

The spelling of 1221141103 in words is "one billion, two hundred twenty-one million, one hundred forty-one thousand, one hundred three".