42042221011400 has 48 divisors (see below), whose sum is σ = 103498055851140. Its totient is φ = 15827659673600.

The previous prime is 42042221011391. The next prime is 42042221011411. The reversal of 42042221011400 is 411012224024.

It can be written as a sum of positive squares in 6 ways, for example, as 35294601737476 + 6747619273924 = 5940926^2 + 2597618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6182676161 + ... + 6182682960.

Almost surely, 2^{42042221011400} is an apocalyptic number.

42042221011400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42042221011400 is an abundant number, since it is smaller than the sum of its proper divisors (61455834839740).

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

42042221011400 is a wasteful number, since it uses less digits than its factorization.

42042221011400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12365359154 (or 12365359145 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 42042221011400 its reverse (411012224024), we get a palindrome (42453233235424).

The spelling of 42042221011400 in words is "forty-two trillion, forty-two billion, two hundred twenty-one million, eleven thousand, four hundred".