1013221101 has 16 divisors (see below), whose sum is σ = 1394380800. Its totient is φ = 654113328.

The previous prime is 1013221073. The next prime is 1013221103. The reversal of 1013221101 is 1011223101.

It is not a de Polignac number, because 1013221101 - 2¹³ = 1013212909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013221103) 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, 30861 + ... + 54578.

It is an arithmetic number, because the mean of its divisors is an integer number (87148800).

Almost surely, 2^1013221101 is an apocalyptic number.

It is an amenable number.

1013221101 is a deficient number, since it is larger than the sum of its proper divisors (381159699).

1013221101 is an equidigital number, since it uses as much as digits as its factorization.

1013221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85568.

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

The square root of 1013221101 is about 31831.1341456757. The cubic root of 1013221101 is about 1004.3877531309.

Adding to 1013221101 its reverse (1011223101), we get a palindrome (2024444202).

The spelling of 1013221101 in words is "one billion, thirteen million, two hundred twenty-one thousand, one hundred one".