200021255110454 has 4 divisors (see below), whose sum is σ = 300031882665684. Its totient is φ = 100010627555226.

The previous prime is 200021255110451. The next prime is 200021255110471. The reversal of 200021255110454 is 454011552120002.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×200021255110454² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200021255110454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200021255110451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005313777612 + ... + 50005313777615.

It is an arithmetic number, because the mean of its divisors is an integer number (75007970666421).

Almost surely, 2^{200021255110454} is an apocalyptic number.

200021255110454 is a deficient number, since it is larger than the sum of its proper divisors (100010627555230).

200021255110454 is a wasteful number, since it uses less digits than its factorization.

200021255110454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100010627555229.

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 200021255110454 in words is "two hundred trillion, twenty-one billion, two hundred fifty-five million, one hundred ten thousand, four hundred fifty-four".