220120100010111 has 32 divisors (see below), whose sum is σ = 335557253104128. Its totient is φ = 125731866798720.

The previous prime is 220120100010103. The next prime is 220120100010131. The reversal of 220120100010111 is 111010001021022.

It is not a de Polignac number, because 220120100010111 - 2³ = 220120100010103 is a prime.

It is a super-2 number, since 2×220120100010111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220120100010101) 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, 675506041 + ... + 675831821.

It is an arithmetic number, because the mean of its divisors is an integer number (10486164159504).

Almost surely, 2^{220120100010111} is an apocalyptic number.

220120100010111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220120100010111 is a deficient number, since it is larger than the sum of its proper divisors (115437153094017).

220120100010111 is a wasteful number, since it uses less digits than its factorization.

220120100010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338751.

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

Adding to 220120100010111 its reverse (111010001021022), we get a palindrome (331130101031133).

The spelling of 220120100010111 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred million, ten thousand, one hundred eleven".