111020002221 has 4 divisors (see below), whose sum is σ = 148026669632. Its totient is φ = 74013334812.

The previous prime is 111020002207. The next prime is 111020002259. The reversal of 111020002221 is 122200020111.

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 not a de Polignac number, because 111020002221 - 2¹¹ = 111020000173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111020002197 and 111020002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111020002021) 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, 18503333701 + ... + 18503333706.

It is an arithmetic number, because the mean of its divisors is an integer number (37006667408).

Almost surely, 2^111020002221 is an apocalyptic number.

It is an amenable number.

111020002221 is a deficient number, since it is larger than the sum of its proper divisors (37006667411).

111020002221 is an equidigital number, since it uses as much as digits as its factorization.

111020002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37006667410.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111020002221 its reverse (122200020111), we get a palindrome (233220022332).

The spelling of 111020002221 in words is "one hundred eleven billion, twenty million, two thousand, two hundred twenty-one".