22142202131440 has 80 divisors (see below), whose sum is σ = 54509805738432. Its totient is φ = 8335748083712.

The previous prime is 22142202131429. The next prime is 22142202131461. The reversal of 22142202131440 is 4413120224122.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 22142202131399 and 22142202131408.

It is a congruent number.

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, 119597022 + ... + 119782018.

Almost surely, 2^{22142202131440} is an apocalyptic number.

22142202131440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22142202131440 is an abundant number, since it is smaller than the sum of its proper divisors (32367603606992).

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

22142202131440 is a wasteful number, since it uses less digits than its factorization.

22142202131440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273034 (or 273028 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 22142202131440 its reverse (4413120224122), we get a palindrome (26555322355562).

The spelling of 22142202131440 in words is "twenty-two trillion, one hundred forty-two billion, two hundred two million, one hundred thirty-one thousand, four hundred forty".