1551200102001 has 12 divisors (see below), whose sum is σ = 2444315312400. Its totient is φ = 940121273880.

The previous prime is 1551200101993. The next prime is 1551200102017. The reversal of 1551200102001 is 1002010021551.

It is not a de Polignac number, because 1551200102001 - 2³ = 1551200101993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1551200102041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7834343851 + ... + 7834344048.

It is an arithmetic number, because the mean of its divisors is an integer number (203692942700).

Almost surely, 2^{1551200102001} is an apocalyptic number.

1551200102001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1551200102001 is a deficient number, since it is larger than the sum of its proper divisors (893115210399).

1551200102001 is a wasteful number, since it uses less digits than its factorization.

1551200102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15668687916 (or 15668687913 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 1551200102001 its reverse (1002010021551), we get a palindrome (2553210123552).

The spelling of 1551200102001 in words is "one trillion, five hundred fifty-one billion, two hundred million, one hundred two thousand, one".