220111012010121 has 8 divisors (see below), whose sum is σ = 293481475448160. Its totient is φ = 146740611622752.

The previous prime is 220111012010041. The next prime is 220111012010191. The reversal of 220111012010121 is 121010210111022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220111012010121 - 2³⁵ = 220076652271753 is a prime.

It is a super-2 number, since 2×220111012010121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220111012010121.

It is not an unprimeable number, because it can be changed into a prime (220111012010191) 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, 6906060 + ... + 22088813.

It is an arithmetic number, because the mean of its divisors is an integer number (36685184431020).

Almost surely, 2^{220111012010121} is an apocalyptic number.

It is an amenable number.

220111012010121 is a deficient number, since it is larger than the sum of its proper divisors (73370463438039).

220111012010121 is a wasteful number, since it uses less digits than its factorization.

220111012010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31525335.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 220111012010121 its reverse (121010210111022), we get a palindrome (341121222121143).

The spelling of 220111012010121 in words is "two hundred twenty trillion, one hundred eleven billion, twelve million, ten thousand, one hundred twenty-one".