1220100230111 has 4 divisors (see below), whose sum is σ = 1394400262992. Its totient is φ = 1045800197232.

The previous prime is 1220100230101. The next prime is 1220100230113. The reversal of 1220100230111 is 1110320010221.

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

It is not a de Polignac number, because 1220100230111 - 2³⁸ = 945222323167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220100230113) 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, 87150016430 + ... + 87150016443.

It is an arithmetic number, because the mean of its divisors is an integer number (348600065748).

Almost surely, 2^{1220100230111} is an apocalyptic number.

1220100230111 is a deficient number, since it is larger than the sum of its proper divisors (174300032881).

1220100230111 is an equidigital number, since it uses as much as digits as its factorization.

1220100230111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174300032880.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1220100230111 its reverse (1110320010221), we get a palindrome (2330420240332).

The spelling of 1220100230111 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred thirty thousand, one hundred eleven".