1101221403213 has 32 divisors (see below), whose sum is σ = 1485563304960. Its totient is φ = 725571020160.

The previous prime is 1101221403203. The next prime is 1101221403223. The reversal of 1101221403213 is 3123041221011.

It is an interprime number because it is at equal distance from previous prime (1101221403203) and next prime (1101221403223).

It is not a de Polignac number, because 1101221403213 - 2¹⁶ = 1101221337677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101221403213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101221403203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119343106 + ... + 119352332.

It is an arithmetic number, because the mean of its divisors is an integer number (46423853280).

Almost surely, 2^{1101221403213} is an apocalyptic number.

It is an amenable number.

1101221403213 is a deficient number, since it is larger than the sum of its proper divisors (384341901747).

1101221403213 is a wasteful number, since it uses less digits than its factorization.

1101221403213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10737.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1101221403213 its reverse (3123041221011), we get a palindrome (4224262624224).

The spelling of 1101221403213 in words is "one trillion, one hundred one billion, two hundred twenty-one million, four hundred three thousand, two hundred thirteen".