402220213201 has 4 divisors (see below), whose sum is σ = 413091029812. Its totient is φ = 391349396592.

The previous prime is 402220213193. The next prime is 402220213247. The reversal of 402220213201 is 102312022204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227742746176 + 174477467025 = 477224^2 + 417705^2 .

It is a cyclic number.

It is not a de Polignac number, because 402220213201 - 2³ = 402220213193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402220213001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5435408250 + ... + 5435408323.

It is an arithmetic number, because the mean of its divisors is an integer number (103272757453).

Almost surely, 2^402220213201 is an apocalyptic number.

It is an amenable number.

402220213201 is a deficient number, since it is larger than the sum of its proper divisors (10870816611).

402220213201 is a wasteful number, since it uses less digits than its factorization.

402220213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870816610.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 402220213201 its reverse (102312022204), we get a palindrome (504532235405).

The spelling of 402220213201 in words is "four hundred two billion, two hundred twenty million, two hundred thirteen thousand, two hundred one".