10223556420 has 96 divisors (see below), whose sum is σ = 35689522176. Its totient is φ = 2124374400.

The previous prime is 10223556401. The next prime is 10223556437. The reversal of 10223556420 is 2465532201.

It is a super-2 number, since 2×10223556420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1101826 + ... + 1111065.

It is an arithmetic number, because the mean of its divisors is an integer number (371765856).

Almost surely, 2^10223556420 is an apocalyptic number.

10223556420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10223556420 is an abundant number, since it is smaller than the sum of its proper divisors (25465965756).

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

10223556420 is a wasteful number, since it uses less digits than its factorization.

10223556420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212921 (or 2212919 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 10223556420 in words is "ten billion, two hundred twenty-three million, five hundred fifty-six thousand, four hundred twenty".