1515020042201 has 4 divisors (see below), whose sum is σ = 1547254511232. Its totient is φ = 1482785573172.

The previous prime is 1515020042197. The next prime is 1515020042233. The reversal of 1515020042201 is 1022400205151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1515020042201 - 2² = 1515020042197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1515020242201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16117234445 + ... + 16117234538.

It is an arithmetic number, because the mean of its divisors is an integer number (386813627808).

Almost surely, 2^{1515020042201} is an apocalyptic number.

It is an amenable number.

1515020042201 is a deficient number, since it is larger than the sum of its proper divisors (32234469031).

1515020042201 is an equidigital number, since it uses as much as digits as its factorization.

1515020042201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32234469030.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 1515020042201 its reverse (1022400205151), we get a palindrome (2537420247352).

The spelling of 1515020042201 in words is "one trillion, five hundred fifteen billion, twenty million, forty-two thousand, two hundred one".