201000020122168 has 8 divisors (see below), whose sum is σ = 376875037729080. Its totient is φ = 100500010061080.

The previous prime is 201000020122091. The next prime is 201000020122169. The reversal of 201000020122168 is 861221020000102.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×201000020122168² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201000020122169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12562501257628 + ... + 12562501257643.

It is an arithmetic number, because the mean of its divisors is an integer number (47109379716135).

Almost surely, 2^{201000020122168} is an apocalyptic number.

It is an amenable number.

201000020122168 is a deficient number, since it is larger than the sum of its proper divisors (175875017606912).

201000020122168 is a wasteful number, since it uses less digits than its factorization.

201000020122168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25125002515277 (or 25125002515273 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The spelling of 201000020122168 in words is "two hundred one trillion, twenty million, one hundred twenty-two thousand, one hundred sixty-eight".