221142025240000 has 140 divisors (see below), whose sum is σ = 577221424549000. Its totient is φ = 83801188224000.

The previous prime is 221142025239991. The next prime is 221142025240027. The reversal of 221142025240000 is 42520241122.

It is a happy number.

221142025240000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 144728175 + ... + 146248174.

It is an arithmetic number, because the mean of its divisors is an integer number (4123010175350).

Almost surely, 2^{221142025240000} is an apocalyptic number.

221142025240000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221142025240000 is an abundant number, since it is smaller than the sum of its proper divisors (356079399309000).

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

221142025240000 is an equidigital number, since it uses as much as digits as its factorization.

221142025240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290976400 (or 290976375 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 221142025240000 its reverse (42520241122), we get a palindrome (221184545481122).

The spelling of 221142025240000 in words is "two hundred twenty-one trillion, one hundred forty-two billion, twenty-five million, two hundred forty thousand".