220112211001211 has 4 divisors (see below), whose sum is σ = 220113849448152. Its totient is φ = 220110572554272.

The previous prime is 220112211001051. The next prime is 220112211001253. The reversal of 220112211001211 is 112100112211022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220112211001211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220112211001211.

It is not an unprimeable number, because it can be changed into a prime (220112211001511) 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, 819021941 + ... + 819290646.

It is an arithmetic number, because the mean of its divisors is an integer number (55028462362038).

Almost surely, 2^{220112211001211} is an apocalyptic number.

220112211001211 is a deficient number, since it is larger than the sum of its proper divisors (1638446941).

220112211001211 is a wasteful number, since it uses less digits than its factorization.

220112211001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638446940.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 220112211001211 its reverse (112100112211022), we get a palindrome (332212323212233).

The spelling of 220112211001211 in words is "two hundred twenty trillion, one hundred twelve billion, two hundred eleven million, one thousand, two hundred eleven".