1023222213312 has 112 divisors (see below), whose sum is σ = 2925480092640. Its totient is φ = 313762848768.

The previous prime is 1023222213287. The next prime is 1023222213323. The reversal of 1023222213312 is 2133122223201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31764 + ... + 1430892.

It is an arithmetic number, because the mean of its divisors is an integer number (26120357970).

Almost surely, 2^{1023222213312} is an apocalyptic number.

1023222213312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023222213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1462740046320).

1023222213312 is an abundant number, since it is smaller than the sum of its proper divisors (1902257879328).

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

1023222213312 is a wasteful number, since it uses less digits than its factorization.

1023222213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399450 (or 1399440 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1023222213312 its reverse (2133122223201), we get a palindrome (3156344436513).

The spelling of 1023222213312 in words is "one trillion, twenty-three billion, two hundred twenty-two million, two hundred thirteen thousand, three hundred twelve".