1321230022 has 48 divisors (see below), whose sum is σ = 2353397760. Its totient is φ = 554580432.

The previous prime is 1321230007. The next prime is 1321230023. The reversal of 1321230022 is 2200321231.

It is a junction number, because it is equal to n+sod(n) for n = 1321229978 and 1321230005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321230023) 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, 1032379 + ... + 1033657.

It is an arithmetic number, because the mean of its divisors is an integer number (49029120).

Almost surely, 2^1321230022 is an apocalyptic number.

1321230022 is a deficient number, since it is larger than the sum of its proper divisors (1032167738).

1321230022 is a wasteful number, since it uses less digits than its factorization.

1321230022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1321230022 is about 36348.7279282233. The cubic root of 1321230022 is about 1097.3019336324.

Adding to 1321230022 its reverse (2200321231), we get a palindrome (3521551253).

It can be divided in two parts, 13212 and 30022, that added together give a palindrome (43234).

The spelling of 1321230022 in words is "one billion, three hundred twenty-one million, two hundred thirty thousand, twenty-two".