220211020121 has 8 divisors (see below), whose sum is σ = 222198978624. Its totient is φ = 218231030160.

The previous prime is 220211020087. The next prime is 220211020181. The reversal of 220211020121 is 121020112022.

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 220211020121 - 2²⁶ = 220143911257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 220211020096 and 220211020105.

It is not an unprimeable number, because it can be changed into a prime (220211020181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1936610 + ... + 2047163.

It is an arithmetic number, because the mean of its divisors is an integer number (27774872328).

Almost surely, 2^220211020121 is an apocalyptic number.

It is an amenable number.

220211020121 is a deficient number, since it is larger than the sum of its proper divisors (1987958503).

220211020121 is a wasteful number, since it uses less digits than its factorization.

220211020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984271.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220211020121 its reverse (121020112022), we get a palindrome (341231132143).

The spelling of 220211020121 in words is "two hundred twenty billion, two hundred eleven million, twenty thousand, one hundred twenty-one".