10200421200021 has 8 divisors (see below), whose sum is σ = 14646758646240. Its totient is φ = 6277182276912.

The previous prime is 10200421200017. The next prime is 10200421200023. The reversal of 10200421200021 is 12000212400201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10200421200021 - 2² = 10200421200017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10200421200023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130774630731 + ... + 130774630808.

It is an arithmetic number, because the mean of its divisors is an integer number (1830844830780).

Almost surely, 2^{10200421200021} is an apocalyptic number.

It is an amenable number.

10200421200021 is a deficient number, since it is larger than the sum of its proper divisors (4446337446219).

10200421200021 is a wasteful number, since it uses less digits than its factorization.

10200421200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261549261555.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10200421200021 its reverse (12000212400201), we get a palindrome (22200633600222).

The spelling of 10200421200021 in words is "ten trillion, two hundred billion, four hundred twenty-one million, two hundred thousand, twenty-one".