2240002120021 has 8 divisors (see below), whose sum is σ = 2273506873344. Its totient is φ = 2206499481120.

The previous prime is 2240002119997. The next prime is 2240002120067. The reversal of 2240002120021 is 1200212000422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2240002120021 - 2³⁷ = 2102563166549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2240002119977 and 2240002120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2240002130021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674156 + ... + 2698666.

It is an arithmetic number, because the mean of its divisors is an integer number (284188359168).

Almost surely, 2^{2240002120021} is an apocalyptic number.

It is an amenable number.

2240002120021 is a deficient number, since it is larger than the sum of its proper divisors (33504753323).

2240002120021 is a wasteful number, since it uses less digits than its factorization.

2240002120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057211.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2240002120021 its reverse (1200212000422), we get a palindrome (3440214120443).

The spelling of 2240002120021 in words is "two trillion, two hundred forty billion, two million, one hundred twenty thousand, twenty-one".