4220121113204 has 6 divisors (see below), whose sum is σ = 7385211948114. Its totient is φ = 2110060556600.

The previous prime is 4220121113129. The next prime is 4220121113207. The reversal of 4220121113204 is 4023111210224.

It can be written as a sum of positive squares in only one way, i.e., 4085653690000 + 134467423204 = 2021300^2 + 366698^2 .

It is a super-2 number, since 2×4220121113204² (a number of 26 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 4220121113204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4220121113207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527515139147 + ... + 527515139154.

It is an arithmetic number, because the mean of its divisors is an integer number (1230868658019).

Almost surely, 2^{4220121113204} is an apocalyptic number.

It is an amenable number.

4220121113204 is a deficient number, since it is larger than the sum of its proper divisors (3165090834910).

4220121113204 is a wasteful number, since it uses less digits than its factorization.

4220121113204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055030278305 (or 1055030278303 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 4220121113204 its reverse (4023111210224), we get a palindrome (8243232323428).

The spelling of 4220121113204 in words is "four trillion, two hundred twenty billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred four".