20402212301 has 4 divisors (see below), whose sum is σ = 20402504604. Its totient is φ = 20401920000.

The previous prime is 20402212297. The next prime is 20402212351. The reversal of 20402212301 is 10321220402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1592089801 + 18810122500 = 39901^2 + 137150^2 .

It is a cyclic number.

It is not a de Polignac number, because 20402212301 - 2² = 20402212297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20402212301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402212351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26651 + ... + 203751.

It is an arithmetic number, because the mean of its divisors is an integer number (5100626151).

Almost surely, 2^20402212301 is an apocalyptic number.

It is an amenable number.

20402212301 is a deficient number, since it is larger than the sum of its proper divisors (292303).

20402212301 is a wasteful number, since it uses less digits than its factorization.

20402212301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292302.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20402212301 its reverse (10321220402), we get a palindrome (30723432703).

The spelling of 20402212301 in words is "twenty billion, four hundred two million, two hundred twelve thousand, three hundred one".