36635000122021 has 32 divisors (see below), whose sum is σ = 45452708352000. Its totient is φ = 28823593925952.

The previous prime is 36635000121997. The next prime is 36635000122069. The reversal of 36635000122021 is 12022100053663.

It is a happy number.

It is not a de Polignac number, because 36635000122021 - 2⁷ = 36635000121893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36635000122921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14398411 + ... + 16750648.

It is an arithmetic number, because the mean of its divisors is an integer number (1420397136000).

Almost surely, 2^{36635000122021} is an apocalyptic number.

It is an amenable number.

36635000122021 is a deficient number, since it is larger than the sum of its proper divisors (8817708229979).

36635000122021 is a wasteful number, since it uses less digits than its factorization.

36635000122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31149361.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 36635000122021 its reverse (12022100053663), we get a palindrome (48657100175684).

The spelling of 36635000122021 in words is "thirty-six trillion, six hundred thirty-five billion, one hundred twenty-two thousand, twenty-one".