402211213042 has 4 divisors (see below), whose sum is σ = 603316819566. Its totient is φ = 201105606520.

The previous prime is 402211213031. The next prime is 402211213049. The reversal of 402211213042 is 240312112204.

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., 205599671761 + 196611541281 = 453431^2 + 443409^2 .

It is a super-2 number, since 2×402211213042² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402211213049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100552803259 + ... + 100552803262.

Almost surely, 2^402211213042 is an apocalyptic number.

402211213042 is a deficient number, since it is larger than the sum of its proper divisors (201105606524).

402211213042 is a wasteful number, since it uses less digits than its factorization.

402211213042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201105606523.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 402211213042 its reverse (240312112204), we get a palindrome (642523325246).

The spelling of 402211213042 in words is "four hundred two billion, two hundred eleven million, two hundred thirteen thousand, forty-two".