402101201 has 4 divisors (see below), whose sum is σ = 402150000. Its totient is φ = 402052404.

The previous prime is 402101197. The next prime is 402101239. The reversal of 402101201 is 102101204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 402101201 - 2² = 402101197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402101251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8651 + ... + 29648.

It is an arithmetic number, because the mean of its divisors is an integer number (100537500).

Almost surely, 2^402101201 is an apocalyptic number.

It is an amenable number.

402101201 is a deficient number, since it is larger than the sum of its proper divisors (48799).

402101201 is a wasteful number, since it uses less digits than its factorization.

402101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48798.

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

The square root of 402101201 is about 20052.4612205086. The cubic root of 402101201 is about 738.0941956916.

Adding to 402101201 its reverse (102101204), we get a palindrome (504202405).

The spelling of 402101201 in words is "four hundred two million, one hundred one thousand, two hundred one".