101221112003 has 32 divisors (see below), whose sum is σ = 117713336832. Its totient is φ = 86018803200.

The previous prime is 101221111987. The next prime is 101221112011. The reversal of 101221112003 is 300211122101.

It is not a de Polignac number, because 101221112003 - 2⁴ = 101221111987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221112023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38008850 + ... + 38011512.

It is an arithmetic number, because the mean of its divisors is an integer number (3678541776).

Almost surely, 2^101221112003 is an apocalyptic number.

101221112003 is a deficient number, since it is larger than the sum of its proper divisors (16492224829).

101221112003 is a wasteful number, since it uses less digits than its factorization.

101221112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995.

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

Adding to 101221112003 its reverse (300211122101), we get a palindrome (401432234104).

The spelling of 101221112003 in words is "one hundred one billion, two hundred twenty-one million, one hundred twelve thousand, three".