201000010121078 has 16 divisors (see below), whose sum is σ = 346563188388000. Its totient is φ = 85644925863936.

The previous prime is 201000010121077. The next prime is 201000010121083. The reversal of 201000010121078 is 870121010000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000010121077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41494632203 + ... + 41494637046.

It is an arithmetic number, because the mean of its divisors is an integer number (21660199274250).

Almost surely, 2^{201000010121078} is an apocalyptic number.

201000010121078 is a deficient number, since it is larger than the sum of its proper divisors (145563178266922).

201000010121078 is a wasteful number, since it uses less digits than its factorization.

201000010121078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82989269431.

The product of its (nonzero) digits is 224, while the sum is 23.

The spelling of 201000010121078 in words is "two hundred one trillion, ten million, one hundred twenty-one thousand, seventy-eight".