1012220122111 has 32 divisors (see below), whose sum is σ = 1176068678400. Its totient is φ = 861496416000.

The previous prime is 1012220122103. The next prime is 1012220122153. The reversal of 1012220122111 is 1112210222101.

It is not a de Polignac number, because 1012220122111 - 2³ = 1012220122103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012220120111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35904441 + ... + 35932621.

It is an arithmetic number, because the mean of its divisors is an integer number (36752146200).

Almost surely, 2^{1012220122111} is an apocalyptic number.

1012220122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1012220122111 is a deficient number, since it is larger than the sum of its proper divisors (163848556289).

1012220122111 is a wasteful number, since it uses less digits than its factorization.

1012220122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30231.

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

Adding to 1012220122111 its reverse (1112210222101), we get a palindrome (2124430344212).

The spelling of 1012220122111 in words is "one trillion, twelve billion, two hundred twenty million, one hundred twenty-two thousand, one hundred eleven".