220120111001211 has 16 divisors (see below), whose sum is σ = 294810820276224. Its totient is φ = 146088076665024.

The previous prime is 220120111001137. The next prime is 220120111001257. The reversal of 220120111001211 is 112100111021022.

It is a happy number.

It is not a de Polignac number, because 220120111001211 - 2¹¹ = 220120110999163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220120111001261) 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, 208131630 + ... + 209186556.

It is an arithmetic number, because the mean of its divisors is an integer number (18425676267264).

Almost surely, 2^{220120111001211} is an apocalyptic number.

220120111001211 is a deficient number, since it is larger than the sum of its proper divisors (74690709275013).

220120111001211 is a wasteful number, since it uses less digits than its factorization.

220120111001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367050.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 220120111001211 its reverse (112100111021022), we get a palindrome (332220222022233).

The spelling of 220120111001211 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred eleven million, one thousand, two hundred eleven".