20020221333415 has 32 divisors (see below), whose sum is σ = 24185947458816. Its totient is φ = 15908780912640.

The previous prime is 20020221333389. The next prime is 20020221333433. The reversal of 20020221333415 is 51433312202002.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20020221333415 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 820051749 + ... + 820076161.

It is an arithmetic number, because the mean of its divisors is an integer number (755810858088).

Almost surely, 2^{20020221333415} is an apocalyptic number.

20020221333415 is a deficient number, since it is larger than the sum of its proper divisors (4165726125401).

20020221333415 is a wasteful number, since it uses less digits than its factorization.

20020221333415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26379.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 20020221333415 its reverse (51433312202002), we get a palindrome (71453533535417).

The spelling of 20020221333415 in words is "twenty trillion, twenty billion, two hundred twenty-one million, three hundred thirty-three thousand, four hundred fifteen".