402021002112002 has 128 divisors (see below), whose sum is σ = 787294182850560. Its totient is φ = 149506277057280.

The previous prime is 402021002111957. The next prime is 402021002112013. The reversal of 402021002112002 is 200211200120204.

It is a super-2 number, since 2×402021002112002² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5561420303 + ... + 5561492589.

It is an arithmetic number, because the mean of its divisors is an integer number (6150735803520).

Almost surely, 2^{402021002112002} is an apocalyptic number.

402021002112002 is a deficient number, since it is larger than the sum of its proper divisors (385273180738558).

402021002112002 is a wasteful number, since it uses less digits than its factorization.

402021002112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84736.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 402021002112002 its reverse (200211200120204), we get a palindrome (602232202232206).

The spelling of 402021002112002 in words is "four hundred two trillion, twenty-one billion, two million, one hundred twelve thousand, two".