36213421402 has 4 divisors (see below), whose sum is σ = 54320132106. Its totient is φ = 18106710700.

The previous prime is 36213421357. The next prime is 36213421411. The reversal of 36213421402 is 20412431263.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20412431263 = 7 ⋅2916061609.

It can be written as a sum of positive squares in only one way, i.e., 31630266801 + 4583154601 = 177849^2 + 67699^2 .

It is a super-2 number, since 2×36213421402² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9053355349 + ... + 9053355352.

Almost surely, 2^36213421402 is an apocalyptic number.

36213421402 is a deficient number, since it is larger than the sum of its proper divisors (18106710704).

36213421402 is a wasteful number, since it uses less digits than its factorization.

36213421402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18106710703.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 36213421402 its reverse (20412431263), we get a palindrome (56625852665).

The spelling of 36213421402 in words is "thirty-six billion, two hundred thirteen million, four hundred twenty-one thousand, four hundred two".