20122220212211 has 32 divisors (see below), whose sum is σ = 23013392371200. Its totient is φ = 17429495076864.

The previous prime is 20122220212097. The next prime is 20122220212301. The reversal of 20122220212211 is 11221202222102.

It is not a de Polignac number, because 20122220212211 - 2³⁴ = 20105040343027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20122220212711) 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, 1177211381 + ... + 1177228473.

It is an arithmetic number, because the mean of its divisors is an integer number (719168511600).

Almost surely, 2^{20122220212211} is an apocalyptic number.

20122220212211 is a deficient number, since it is larger than the sum of its proper divisors (2891172158989).

20122220212211 is a wasteful number, since it uses less digits than its factorization.

20122220212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32735.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20122220212211 its reverse (11221202222102), we get a palindrome (31343422434313).

The spelling of 20122220212211 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twelve thousand, two hundred eleven".