220002220121 has 8 divisors (see below), whose sum is σ = 221350487904. Its totient is φ = 218657406240.

The previous prime is 220002220093. The next prime is 220002220127. The reversal of 220002220121 is 121022200022.

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 220002220121 - 2³⁰ = 218928478297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220002220096 and 220002220105.

It is not an unprimeable number, because it can be changed into a prime (220002220127) 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, 735635 + ... + 990536.

It is an arithmetic number, because the mean of its divisors is an integer number (27668810988).

Almost surely, 2^220002220121 is an apocalyptic number.

It is an amenable number.

220002220121 is a deficient number, since it is larger than the sum of its proper divisors (1348267783).

220002220121 is a wasteful number, since it uses less digits than its factorization.

220002220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726951.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220002220121 its reverse (121022200022), we get a palindrome (341024420143).

The spelling of 220002220121 in words is "two hundred twenty billion, two million, two hundred twenty thousand, one hundred twenty-one".