220012021211 has 4 divisors (see below), whose sum is σ = 221054732424. Its totient is φ = 218969310000.

The previous prime is 220012021189. The next prime is 220012021213. The reversal of 220012021211 is 112120210022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112120210022 = 2 ⋅56060105011.

It is a cyclic number.

It is not a de Polignac number, because 220012021211 - 2²⁶ = 219944912347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220012021213) 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, 521355290 + ... + 521355711.

It is an arithmetic number, because the mean of its divisors is an integer number (55263683106).

Almost surely, 2^220012021211 is an apocalyptic number.

220012021211 is a deficient number, since it is larger than the sum of its proper divisors (1042711213).

220012021211 is a wasteful number, since it uses less digits than its factorization.

220012021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042711212.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220012021211 its reverse (112120210022), we get a palindrome (332132231233).

The spelling of 220012021211 in words is "two hundred twenty billion, twelve million, twenty-one thousand, two hundred eleven".