1223323121010 has 64 divisors (see below), whose sum is σ = 2950317198720. Its totient is φ = 324626426880.

The previous prime is 1223323121003. The next prime is 1223323121011. The reversal of 1223323121010 is 101213233221.

It is not an unprimeable number, because it can be changed into a prime (1223323121011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78566506 + ... + 78582074.

It is an arithmetic number, because the mean of its divisors is an integer number (46098706230).

Almost surely, 2^{1223323121010} is an apocalyptic number.

1223323121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223323121010 is an abundant number, since it is smaller than the sum of its proper divisors (1726994077710).

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

1223323121010 is a wasteful number, since it uses less digits than its factorization.

1223323121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28203.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1223323121010 its reverse (101213233221), we get a palindrome (1324536354231).

The spelling of 1223323121010 in words is "one trillion, two hundred twenty-three billion, three hundred twenty-three million, one hundred twenty-one thousand, ten".