2042550221413 has 16 divisors (see below), whose sum is σ = 2236795545600. Its totient is φ = 1853872712640.

The previous prime is 2042550221407. The next prime is 2042550221471. The reversal of 2042550221413 is 3141220552402.

It is a happy number.

It is not a de Polignac number, because 2042550221413 - 2³³ = 2033960286821 is a prime.

It is a super-2 number, since 2×2042550221413² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042550221473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5316133 + ... + 5687386.

It is an arithmetic number, because the mean of its divisors is an integer number (139799721600).

Almost surely, 2^{2042550221413} is an apocalyptic number.

It is an amenable number.

2042550221413 is a deficient number, since it is larger than the sum of its proper divisors (194245324187).

2042550221413 is a wasteful number, since it uses less digits than its factorization.

2042550221413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11003772.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 2042550221413 its reverse (3141220552402), we get a palindrome (5183770773815).

The spelling of 2042550221413 in words is "two trillion, forty-two billion, five hundred fifty million, two hundred twenty-one thousand, four hundred thirteen".