1015342221442 has 16 divisors (see below), whose sum is σ = 1634692798872. Its totient is φ = 471262786560.

The previous prime is 1015342221401. The next prime is 1015342221469. The reversal of 1015342221442 is 2441222435101.

It can be written as a sum of positive squares in 4 ways, for example, as 749105829081 + 266236392361 = 865509^2 + 515981^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204538659 + ... + 204543622.

Almost surely, 2^{1015342221442} is an apocalyptic number.

1015342221442 is a deficient number, since it is larger than the sum of its proper divisors (619350577430).

1015342221442 is a wasteful number, since it uses less digits than its factorization.

1015342221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409082373.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 1015342221442 its reverse (2441222435101), we get a palindrome (3456564656543).

The spelling of 1015342221442 in words is "one trillion, fifteen billion, three hundred forty-two million, two hundred twenty-one thousand, four hundred forty-two".