1222032421542 has 16 divisors (see below), whose sum is σ = 2451317265072. Its totient is φ = 406135403520.

The previous prime is 1222032421531. The next prime is 1222032421543. The reversal of 1222032421542 is 2451242302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222032421543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302182059 + ... + 302186102.

It is an arithmetic number, because the mean of its divisors is an integer number (153207329067).

Almost surely, 2^{1222032421542} is an apocalyptic number.

1222032421542 is an abundant number, since it is smaller than the sum of its proper divisors (1229284843530).

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

1222032421542 is a wasteful number, since it uses less digits than its factorization.

1222032421542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604368503.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 1222032421542 its reverse (2451242302221), we get a palindrome (3673274723763).

The spelling of 1222032421542 in words is "one trillion, two hundred twenty-two billion, thirty-two million, four hundred twenty-one thousand, five hundred forty-two".