220212020220121 has 4 divisors (see below), whose sum is σ = 224897382352512. Its totient is φ = 215526658087732.

The previous prime is 220212020220103. The next prime is 220212020220139. The reversal of 220212020220121 is 121022020212022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (220212020220103) and next prime (220212020220139).

It is a cyclic number.

It is not a de Polignac number, because 220212020220121 - 2²⁵ = 220211986665689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220212020220191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342681066125 + ... + 2342681066218.

It is an arithmetic number, because the mean of its divisors is an integer number (56224345588128).

Almost surely, 2^{220212020220121} is an apocalyptic number.

It is an amenable number.

220212020220121 is a deficient number, since it is larger than the sum of its proper divisors (4685362132391).

220212020220121 is an equidigital number, since it uses as much as digits as its factorization.

220212020220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685362132390.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220212020220121 its reverse (121022020212022), we get a palindrome (341234040432143).

The spelling of 220212020220121 in words is "two hundred twenty trillion, two hundred twelve billion, twenty million, two hundred twenty thousand, one hundred twenty-one".