402201201042 has 24 divisors (see below), whose sum is σ = 871515953100. Its totient is φ = 134054756640.

The previous prime is 402201201013. The next prime is 402201201137. The reversal of 402201201042 is 240102102204.

402201201042 is a `hidden beast` number, since 402 + 20 + 1 + 201 + 0 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 374004410481 + 28196790561 = 611559^2 + 167919^2 .

It is a super-2 number, since 2×402201201042² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 823309 + ... + 1217472.

Almost surely, 2^402201201042 is an apocalyptic number.

402201201042 is an abundant number, since it is smaller than the sum of its proper divisors (469314752058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402201201042 is a wasteful number, since it uses less digits than its factorization.

402201201042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051738 (or 2051735 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 402201201042 its reverse (240102102204), we get a palindrome (642303303246).

The spelling of 402201201042 in words is "four hundred two billion, two hundred one million, two hundred one thousand, forty-two".