11200012101221 has 4 divisors (see below), whose sum is σ = 11274184366944. Its totient is φ = 11125839835500.

The previous prime is 11200012101203. The next prime is 11200012101247. The reversal of 11200012101221 is 12210121000211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11200012101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200012101196 and 11200012101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200012101281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37086132635 + ... + 37086132936.

It is an arithmetic number, because the mean of its divisors is an integer number (2818546091736).

Almost surely, 2^{11200012101221} is an apocalyptic number.

It is an amenable number.

11200012101221 is a deficient number, since it is larger than the sum of its proper divisors (74172265723).

11200012101221 is an equidigital number, since it uses as much as digits as its factorization.

11200012101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74172265722.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11200012101221 its reverse (12210121000211), we get a palindrome (23410133101432).

The spelling of 11200012101221 in words is "eleven trillion, two hundred billion, twelve million, one hundred one thousand, two hundred twenty-one".