400121414100002 has 24 divisors (see below), whose sum is σ = 698189567899356. Its totient is φ = 171476055057888.

The previous prime is 400121414099989. The next prime is 400121414100007. The reversal of 400121414100002 is 200001414121004.

It can be written as a sum of positive squares in 2 ways, for example, as 388845310543921 + 11276103556081 = 19719161^2 + 3357991^2 .

It is not an unprimeable number, because it can be changed into a prime (400121414100007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50465633 + ... + 57853460.

Almost surely, 2^{400121414100002} is an apocalyptic number.

400121414100002 is a deficient number, since it is larger than the sum of its proper divisors (298068153799354).

400121414100002 is a wasteful number, since it uses less digits than its factorization.

400121414100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108356802 (or 108356795 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 400121414100002 its reverse (200001414121004), we get a palindrome (600122828221006).

The spelling of 400121414100002 in words is "four hundred trillion, one hundred twenty-one billion, four hundred fourteen million, one hundred thousand, two".