220011222121211 has 8 divisors (see below), whose sum is σ = 223420277721600. Its totient is φ = 216610786131880.

The previous prime is 220011222121183. The next prime is 220011222121213. The reversal of 220011222121211 is 112121222110022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220011222121211 - 2¹⁴ = 220011222104827 is a prime.

It is a super-2 number, since 2×220011222121211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220011222121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2154851321 + ... + 2154953418.

It is an arithmetic number, because the mean of its divisors is an integer number (27927534715200).

Almost surely, 2^{220011222121211} is an apocalyptic number.

220011222121211 is a deficient number, since it is larger than the sum of its proper divisors (3409055600389).

220011222121211 is an equidigital number, since it uses as much as digits as its factorization.

220011222121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4309805529.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 220011222121211 its reverse (112121222110022), we get a palindrome (332132444231233).

The spelling of 220011222121211 in words is "two hundred twenty trillion, eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred eleven".