2142244440440 has 64 divisors (see below), whose sum is σ = 5207731673760. Its totient is φ = 788406013440.

The previous prime is 2142244440409. The next prime is 2142244440481. The reversal of 2142244440440 is 440444422412.

It is a super-2 number, since 2×2142244440440² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2142244440440.

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, 6549971 + ... + 6869250.

Almost surely, 2^{2142244440440} is an apocalyptic number.

2142244440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142244440440 is an abundant number, since it is smaller than the sum of its proper divisors (3065487233320).

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

2142244440440 is a wasteful number, since it uses less digits than its factorization.

2142244440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13419552 (or 13419548 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 35.

Adding to 2142244440440 its reverse (440444422412), we get a palindrome (2582688862852).

The spelling of 2142244440440 in words is "two trillion, one hundred forty-two billion, two hundred forty-four million, four hundred forty thousand, four hundred forty".