23223221034440 has 128 divisors (see below), whose sum is σ = 61174587018240. Its totient is φ = 7770104153856.

The previous prime is 23223221034427. The next prime is 23223221034457. The reversal of 23223221034440 is 4443012232232.

It is a super-2 number, since 2×23223221034440² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23223221034397 and 23223221034406.

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, 3777314 + ... + 7791953.

It is an arithmetic number, because the mean of its divisors is an integer number (477926461080).

Almost surely, 2^{23223221034440} is an apocalyptic number.

23223221034440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23223221034440 is an abundant number, since it is smaller than the sum of its proper divisors (37951365983800).

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

23223221034440 is a wasteful number, since it uses less digits than its factorization.

23223221034440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11569459 (or 11569455 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 23223221034440 its reverse (4443012232232), we get a palindrome (27666233266672).

The spelling of 23223221034440 in words is "twenty-three trillion, two hundred twenty-three billion, two hundred twenty-one million, thirty-four thousand, four hundred forty".