1505425472121 has 4 divisors (see below), whose sum is σ = 2007233962832. Its totient is φ = 1003616981412.

The previous prime is 1505425472119. The next prime is 1505425472137. The reversal of 1505425472121 is 1212745245051.

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 not a de Polignac number, because 1505425472121 - 2¹ = 1505425472119 is a prime.

It is a super-2 number, since 2×1505425472121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1505425472121.

It is not an unprimeable number, because it can be changed into a prime (1505425472101) 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, 250904245351 + ... + 250904245356.

It is an arithmetic number, because the mean of its divisors is an integer number (501808490708).

Almost surely, 2^{1505425472121} is an apocalyptic number.

It is an amenable number.

1505425472121 is a deficient number, since it is larger than the sum of its proper divisors (501808490711).

1505425472121 is an equidigital number, since it uses as much as digits as its factorization.

1505425472121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501808490710.

The product of its (nonzero) digits is 112000, while the sum is 39.

The spelling of 1505425472121 in words is "one trillion, five hundred five billion, four hundred twenty-five million, four hundred seventy-two thousand, one hundred twenty-one".