11321222021004 has 24 divisors (see below), whose sum is σ = 30189925389568. Its totient is φ = 3234634863120.

The previous prime is 11321222020949. The next prime is 11321222021029. The reversal of 11321222021004 is 40012022212311.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67388226232 + ... + 67388226399.

Almost surely, 2^{11321222021004} is an apocalyptic number.

11321222021004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11321222021004 is an abundant number, since it is smaller than the sum of its proper divisors (18868703368564).

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

11321222021004 is a wasteful number, since it uses less digits than its factorization.

11321222021004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134776452645 (or 134776452643 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11321222021004 its reverse (40012022212311), we get a palindrome (51333244233315).

The spelling of 11321222021004 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, four".