401599884002121 has 24 divisors (see below), whose sum is σ = 662990476786560. Its totient is φ = 229474592499456.

The previous prime is 401599884002101. The next prime is 401599884002189. The reversal of 401599884002121 is 121200488995104.

401599884002121 is a `hidden beast` number, since 4 + 0 + 1 + 599 + 8 + 8 + 4 + 0 + 0 + 21 + 21 = 666.

It is not a de Polignac number, because 401599884002121 - 2¹³ = 401599883993929 is a prime.

It is a super-2 number, since 2×401599884002121² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401599884002101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152230440 + ... + 154846073.

It is an arithmetic number, because the mean of its divisors is an integer number (27624603199440).

Almost surely, 2^{401599884002121} is an apocalyptic number.

It is an amenable number.

401599884002121 is a deficient number, since it is larger than the sum of its proper divisors (261390592784439).

401599884002121 is a wasteful number, since it uses less digits than its factorization.

401599884002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307097285 (or 307097282 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 401599884002121 in words is "four hundred one trillion, five hundred ninety-nine billion, eight hundred eighty-four million, two thousand, one hundred twenty-one".