220120022011 has 4 divisors (see below), whose sum is σ = 223728547024. Its totient is φ = 216511497000.

The previous prime is 220120021973. The next prime is 220120022033. The reversal of 220120022011 is 110220021022.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 220120022011 - 2¹⁹ = 220119497723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220120021982 and 220120022000.

It is not an unprimeable number, because it can be changed into a prime (220120025011) 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, 1804262415 + ... + 1804262536.

It is an arithmetic number, because the mean of its divisors is an integer number (55932136756).

Almost surely, 2^220120022011 is an apocalyptic number.

220120022011 is a deficient number, since it is larger than the sum of its proper divisors (3608525013).

220120022011 is an equidigital number, since it uses as much as digits as its factorization.

220120022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608525012.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220120022011 its reverse (110220021022), we get a palindrome (330340043033).

The spelling of 220120022011 in words is "two hundred twenty billion, one hundred twenty million, twenty-two thousand, eleven".