1322220312210 has 64 divisors (see below), whose sum is σ = 3627253435392. Its totient is φ = 302172451776.

The previous prime is 1322220312199. The next prime is 1322220312211. The reversal of 1322220312210 is 122130222231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1322220312211) 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, 783417 + ... + 1805043.

It is an arithmetic number, because the mean of its divisors is an integer number (56675834928).

Almost surely, 2^{1322220312210} is an apocalyptic number.

1322220312210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1322220312210 is an abundant number, since it is smaller than the sum of its proper divisors (2305033123182).

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

1322220312210 is a wasteful number, since it uses less digits than its factorization.

1322220312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027807.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1322220312210 its reverse (122130222231), we get a palindrome (1444350534441).

The spelling of 1322220312210 in words is "one trillion, three hundred twenty-two billion, two hundred twenty million, three hundred twelve thousand, two hundred ten".