401121002 has 4 divisors (see below), whose sum is σ = 601681506. Its totient is φ = 200560500.

The previous prime is 401120987. The next prime is 401121023. The reversal of 401121002 is 200121104.

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

It can be written as a sum of positive squares in only one way, i.e., 376010881 + 25110121 = 19391^2 + 5011^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100280249 + ... + 100280252.

Almost surely, 2^401121002 is an apocalyptic number.

401121002 is a deficient number, since it is larger than the sum of its proper divisors (200560504).

401121002 is a wasteful number, since it uses less digits than its factorization.

401121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200560503.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 401121002 is about 20028.0054423799. The cubic root of 401121002 is about 737.4939588512.

Adding to 401121002 its reverse (200121104), we get a palindrome (601242106).

It can be divided in two parts, 40112 and 1002, that added together give a palindrome (41114).

The spelling of 401121002 in words is "four hundred one million, one hundred twenty-one thousand, two".