402223230220 has 48 divisors (see below), whose sum is σ = 974893566528. Its totient is φ = 136539705600.

The previous prime is 402223230173. The next prime is 402223230247. The reversal of 402223230220 is 22032322204.

It is a super-2 number, since 2×402223230220² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402223230191 and 402223230200.

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, 14208747 + ... + 14237026.

It is an arithmetic number, because the mean of its divisors is an integer number (20310282636).

Almost surely, 2^402223230220 is an apocalyptic number.

It is an amenable number.

402223230220 is an abundant number, since it is smaller than the sum of its proper divisors (572670336308).

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

402223230220 is a wasteful number, since it uses less digits than its factorization.

402223230220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28445890 (or 28445888 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 402223230220 its reverse (22032322204), we get a palindrome (424255552424).

The spelling of 402223230220 in words is "four hundred two billion, two hundred twenty-three million, two hundred thirty thousand, two hundred twenty".