4230121120220 has 12 divisors (see below), whose sum is σ = 8883254352504. Its totient is φ = 1692048448080.

The previous prime is 4230121120189. The next prime is 4230121120231. The reversal of 4230121120220 is 220211210324.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 211506056011 = 4230121120220 / (4 + 2 + 3 + 0 + 1 + 2 + 1 + 1 + 2 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 4230121120192 and 4230121120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105753027986 + ... + 105753028025.

It is an arithmetic number, because the mean of its divisors is an integer number (740271196042).

Almost surely, 2^{4230121120220} is an apocalyptic number.

It is an amenable number.

4230121120220 is an abundant number, since it is smaller than the sum of its proper divisors (4653133232284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4230121120220 is a wasteful number, since it uses less digits than its factorization.

4230121120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211506056020 (or 211506056018 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 4230121120220 its reverse (220211210324), we get a palindrome (4450332330544).

The spelling of 4230121120220 in words is "four trillion, two hundred thirty billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twenty".