1003221123210 has 48 divisors (see below), whose sum is σ = 2610697868064. Its totient is φ = 267287381856.

The previous prime is 1003221123187. The next prime is 1003221123211. The reversal of 1003221123210 is 123211223001.

1003221123210 is a `hidden beast` number, since 10 + 0 + 322 + 1 + 12 + 321 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1003221123211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4861932 + ... + 5064071.

It is an arithmetic number, because the mean of its divisors is an integer number (54389538918).

Almost surely, 2^{1003221123210} is an apocalyptic number.

1003221123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1003221123210 is an abundant number, since it is smaller than the sum of its proper divisors (1607476744854).

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

1003221123210 is a wasteful number, since it uses less digits than its factorization.

1003221123210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9927139 (or 9927136 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1003221123210 its reverse (123211223001), we get a palindrome (1126432346211).

The spelling of 1003221123210 in words is "one trillion, three billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred ten".