402212023042 has 16 divisors (see below), whose sum is σ = 618635139192. Its totient is φ = 196058661120.

The previous prime is 402212023033. The next prime is 402212023061. The reversal of 402212023042 is 240320212204.

It can be written as a sum of positive squares in 4 ways, for example, as 65290981441 + 336921041601 = 255521^2 + 580449^2 .

It is a super-2 number, since 2×402212023042² (a number of 24 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 14573913 + ... + 14601484.

Almost surely, 2^402212023042 is an apocalyptic number.

402212023042 is a deficient number, since it is larger than the sum of its proper divisors (216423116150).

402212023042 is a wasteful number, since it uses less digits than its factorization.

402212023042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29175573.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 402212023042 its reverse (240320212204), we get a palindrome (642532235246).

The spelling of 402212023042 in words is "four hundred two billion, two hundred twelve million, twenty-three thousand, forty-two".