321120212010 has 128 divisors (see below), whose sum is σ = 873942048000. Its totient is φ = 74860111872.

The previous prime is 321120212009. The next prime is 321120212047. The reversal of 321120212010 is 10212021123.

It is a super-2 number, since 2×321120212010² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32665776 + ... + 32675604.

It is an arithmetic number, because the mean of its divisors is an integer number (6827672250).

Almost surely, 2^321120212010 is an apocalyptic number.

321120212010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 321120212010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436971024000).

321120212010 is an abundant number, since it is smaller than the sum of its proper divisors (552821835990).

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

321120212010 is a wasteful number, since it uses less digits than its factorization.

321120212010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14280.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 321120212010 its reverse (10212021123), we get a palindrome (331332233133).

The spelling of 321120212010 in words is "three hundred twenty-one billion, one hundred twenty million, two hundred twelve thousand, ten".