220100031211 has 8 divisors (see below), whose sum is σ = 237072249920. Its totient is φ = 203666613192.

The previous prime is 220100031199. The next prime is 220100031223. The reversal of 220100031211 is 112130001022.

It is an interprime number because it is at equal distance from previous prime (220100031199) and next prime (220100031223).

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 220100031211 - 2²¹ = 220097934059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220100031191 and 220100031200.

It is not an unprimeable number, because it can be changed into a prime (220100031911) 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, 134699325 + ... + 134700958.

It is an arithmetic number, because the mean of its divisors is an integer number (29634031240).

Almost surely, 2^220100031211 is an apocalyptic number.

220100031211 is a deficient number, since it is larger than the sum of its proper divisors (16972218709).

220100031211 is a wasteful number, since it uses less digits than its factorization.

220100031211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269400345.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 220100031211 its reverse (112130001022), we get a palindrome (332230032233).

The spelling of 220100031211 in words is "two hundred twenty billion, one hundred million, thirty-one thousand, two hundred eleven".