42222120000 has 140 divisors (see below), whose sum is σ = 139596577296. Its totient is φ = 11259200000.

The previous prime is 42222119917. The next prime is 42222120007. The reversal of 42222120000 is 2122224.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (42222120007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55926 + ... + 295925.

Almost surely, 2^42222120000 is an apocalyptic number.

42222120000 is a gapful number since it is divisible by the number (40) 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 42222120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69798288648).

42222120000 is an abundant number, since it is smaller than the sum of its proper divisors (97374457296).

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

42222120000 is an equidigital number, since it uses as much as digits as its factorization.

42222120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351886 (or 351861 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 42222120000 its reverse (2122224), we get a palindrome (42224242224).

The spelling of 42222120000 in words is "forty-two billion, two hundred twenty-two million, one hundred twenty thousand".