1421244323212 has 72 divisors (see below), whose sum is σ = 3020589817056. Its totient is φ = 582322954752.

The previous prime is 1421244323197. The next prime is 1421244323227. The reversal of 1421244323212 is 2123234421241.

It is an interprime number because it is at equal distance from previous prime (1421244323197) and next prime (1421244323227).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8814388 + ... + 8974180.

It is an arithmetic number, because the mean of its divisors is an integer number (41952636348).

Almost surely, 2^{1421244323212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421244323212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510294908528).

1421244323212 is an abundant number, since it is smaller than the sum of its proper divisors (1599345493844).

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

1421244323212 is a wasteful number, since it uses less digits than its factorization.

1421244323212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161807 (or 161798 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

Adding to 1421244323212 its reverse (2123234421241), we get a palindrome (3544478744453).

The spelling of 1421244323212 in words is "one trillion, four hundred twenty-one billion, two hundred forty-four million, three hundred twenty-three thousand, two hundred twelve".