111220201102102 has 4 divisors (see below), whose sum is σ = 166830301653156. Its totient is φ = 55610100551050.

The previous prime is 111220201102067. The next prime is 111220201102103. The reversal of 111220201102102 is 201201102022111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220201102103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805050275524 + ... + 27805050275527.

It is an arithmetic number, because the mean of its divisors is an integer number (41707575413289).

Almost surely, 2^{111220201102102} is an apocalyptic number.

111220201102102 is a deficient number, since it is larger than the sum of its proper divisors (55610100551054).

111220201102102 is an equidigital number, since it uses as much as digits as its factorization.

111220201102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55610100551053.

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

Adding to 111220201102102 its reverse (201201102022111), we get a palindrome (312421303124213).

The spelling of 111220201102102 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, one hundred two thousand, one hundred two".