20022551075020 has 144 divisors (see below), whose sum is σ = 48887846820288. Its totient is φ = 6860060712960.

The previous prime is 20022551074997. The next prime is 20022551075057. The reversal of 20022551075020 is 2057015522002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1625712 + ... + 6533608.

It is an arithmetic number, because the mean of its divisors is an integer number (339498936252).

Almost surely, 2^{20022551075020} is an apocalyptic number.

20022551075020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022551075020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24443923410144).

20022551075020 is an abundant number, since it is smaller than the sum of its proper divisors (28865295745268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20022551075020 is a wasteful number, since it uses less digits than its factorization.

20022551075020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4908020 (or 4908005 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

Adding to 20022551075020 its reverse (2057015522002), we get a palindrome (22079566597022).

The spelling of 20022551075020 in words is "twenty trillion, twenty-two billion, five hundred fifty-one million, seventy-five thousand, twenty".