220101212111 has 16 divisors (see below), whose sum is σ = 245243082240. Its totient is φ = 195815618880.

The previous prime is 220101212087. The next prime is 220101212119. The reversal of 220101212111 is 111212101022.

It is a cyclic number.

It is not a de Polignac number, because 220101212111 - 2⁶ = 220101212047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220101212119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9464480 + ... + 9487706.

It is an arithmetic number, because the mean of its divisors is an integer number (15327692640).

Almost surely, 2^220101212111 is an apocalyptic number.

220101212111 is a deficient number, since it is larger than the sum of its proper divisors (25141870129).

220101212111 is a wasteful number, since it uses less digits than its factorization.

220101212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41614.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220101212111 its reverse (111212101022), we get a palindrome (331313313133).

The spelling of 220101212111 in words is "two hundred twenty billion, one hundred one million, two hundred twelve thousand, one hundred eleven".