1220201010111 has 16 divisors (see below), whose sum is σ = 1667289050240. Its totient is φ = 793347397920.

The previous prime is 1220201010107. The next prime is 1220201010167. The reversal of 1220201010111 is 1110101020221.

It is not a de Polignac number, because 1220201010111 - 2² = 1220201010107 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 (1220201010811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7069741 + ... + 7240278.

It is an arithmetic number, because the mean of its divisors is an integer number (104205565640).

Almost surely, 2^{1220201010111} is an apocalyptic number.

1220201010111 is a deficient number, since it is larger than the sum of its proper divisors (447088040129).

1220201010111 is a wasteful number, since it uses less digits than its factorization.

1220201010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14310726.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220201010111 its reverse (1110101020221), we get a palindrome (2330302030332).

The spelling of 1220201010111 in words is "one trillion, two hundred twenty billion, two hundred one million, ten thousand, one hundred eleven".