20022035855285 has 4 divisors (see below), whose sum is σ = 24026443026348. Its totient is φ = 16017628684224.

The previous prime is 20022035855279. The next prime is 20022035855293. The reversal of 20022035855285 is 58255853022002.

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 7587942362884 + 12434093492401 = 2754622^2 + 3526201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022035855285 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002203585524 + ... + 2002203585533.

It is an arithmetic number, because the mean of its divisors is an integer number (6006610756587).

Almost surely, 2^{20022035855285} is an apocalyptic number.

It is an amenable number.

20022035855285 is a deficient number, since it is larger than the sum of its proper divisors (4004407171063).

20022035855285 is an equidigital number, since it uses as much as digits as its factorization.

20022035855285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004407171062.

The product of its (nonzero) digits is 1920000, while the sum is 47.

Adding to 20022035855285 its reverse (58255853022002), we get a palindrome (78277888877287).

The spelling of 20022035855285 in words is "twenty trillion, twenty-two billion, thirty-five million, eight hundred fifty-five thousand, two hundred eighty-five".