220211212121011 has 8 divisors (see below), whose sum is σ = 220606308383984. Its totient is φ = 219816443878560.

The previous prime is 220211212120997. The next prime is 220211212121059. The reversal of 220211212121011 is 110121212112022.

It is a happy number.

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 220211212121011 - 2²⁹ = 220210675250099 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 220211212121011.

It is not an unprimeable number, because it can be changed into a prime (220211212101011) 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, 80661240 + ... + 83346613.

It is an arithmetic number, because the mean of its divisors is an integer number (27575788547998).

Almost surely, 2^{220211212121011} is an apocalyptic number.

220211212121011 is a deficient number, since it is larger than the sum of its proper divisors (395096262973).

220211212121011 is a wasteful number, since it uses less digits than its factorization.

220211212121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164010261.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220211212121011 its reverse (110121212112022), we get a palindrome (330332424233033).

The spelling of 220211212121011 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred twelve million, one hundred twenty-one thousand, eleven".