111220021210201 has 4 divisors (see below), whose sum is σ = 112299827241472. Its totient is φ = 110140215178932.

The previous prime is 111220021210147. The next prime is 111220021210217. The reversal of 111220021210201 is 102012120022111.

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 not a de Polignac number, because 111220021210201 - 2¹³ = 111220021202009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220021210261) 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, 539903015481 + ... + 539903015686.

It is an arithmetic number, because the mean of its divisors is an integer number (28074956810368).

Almost surely, 2^{111220021210201} is an apocalyptic number.

It is an amenable number.

111220021210201 is a deficient number, since it is larger than the sum of its proper divisors (1079806031271).

111220021210201 is a wasteful number, since it uses less digits than its factorization.

111220021210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079806031270.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111220021210201 its reverse (102012120022111), we get a palindrome (213232141232312).

The spelling of 111220021210201 in words is "one hundred eleven trillion, two hundred twenty billion, twenty-one million, two hundred ten thousand, two hundred one".