2001420430225 has 48 divisors (see below), whose sum is σ = 2598935657472. Its totient is φ = 1526047997760.

The previous prime is 2001420430211. The next prime is 2001420430241. The reversal of 2001420430225 is 5220340241002.

It is not a de Polignac number, because 2001420430225 - 2⁵ = 2001420430193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 2001420430225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209633902 + ... + 209643448.

It is an arithmetic number, because the mean of its divisors is an integer number (54144492864).

Almost surely, 2^{2001420430225} is an apocalyptic number.

2001420430225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2001420430225 is a deficient number, since it is larger than the sum of its proper divisors (597515227247).

2001420430225 is a wasteful number, since it uses less digits than its factorization.

2001420430225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10846 (or 10841 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 2001420430225 its reverse (5220340241002), we get a palindrome (7221760671227).

The spelling of 2001420430225 in words is "two trillion, one billion, four hundred twenty million, four hundred thirty thousand, two hundred twenty-five".