4000012203220 has 48 divisors (see below), whose sum is σ = 9254393721216. Its totient is φ = 1440148400000.

The previous prime is 4000012203167. The next prime is 4000012203263. The reversal of 4000012203220 is 223022100004.

It is a junction number, because it is equal to n+sod(n) for n = 4000012203194 and 4000012203203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89987056 + ... + 90031495.

It is an arithmetic number, because the mean of its divisors is an integer number (192799869192).

Almost surely, 2^{4000012203220} is an apocalyptic number.

It is an amenable number.

4000012203220 is an abundant number, since it is smaller than the sum of its proper divisors (5254381517996).

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

4000012203220 is a wasteful number, since it uses less digits than its factorization.

4000012203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180018672 (or 180018670 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 4000012203220 its reverse (223022100004), we get a palindrome (4223034303224).

The spelling of 4000012203220 in words is "four trillion, twelve million, two hundred three thousand, two hundred twenty".