1540020105222 has 16 divisors (see below), whose sum is σ = 3163284540912. Its totient is φ = 499465980000.

The previous prime is 1540020105191. The next prime is 1540020105227. The reversal of 1540020105222 is 2225010200451.

It is a junction number, because it is equal to n+sod(n) for n = 1540020105192 and 1540020105201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540020105227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3468513529 + ... + 3468513972.

It is an arithmetic number, because the mean of its divisors is an integer number (197705283807).

Almost surely, 2^{1540020105222} is an apocalyptic number.

1540020105222 is an abundant number, since it is smaller than the sum of its proper divisors (1623264435690).

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

1540020105222 is a wasteful number, since it uses less digits than its factorization.

1540020105222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6937027543.

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 1540020105222 its reverse (2225010200451), we get a palindrome (3765030305673).

The spelling of 1540020105222 in words is "one trillion, five hundred forty billion, twenty million, one hundred five thousand, two hundred twenty-two".