20515422020235 has 32 divisors (see below), whose sum is σ = 35087245659648. Its totient is φ = 10210574119680.

The previous prime is 20515422020231. The next prime is 20515422020257. The reversal of 20515422020235 is 53202022451502.

It is not a de Polignac number, because 20515422020235 - 2² = 20515422020231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20515422020196 and 20515422020205.

It is not an unprimeable number, because it can be changed into a prime (20515422020231) 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, 725168677 + ... + 725196966.

It is an arithmetic number, because the mean of its divisors is an integer number (1096476426864).

Almost surely, 2^{20515422020235} is an apocalyptic number.

20515422020235 is a deficient number, since it is larger than the sum of its proper divisors (14571823639413).

20515422020235 is a wasteful number, since it uses less digits than its factorization.

20515422020235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450365715.

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 20515422020235 its reverse (53202022451502), we get a palindrome (73717444471737).

The spelling of 20515422020235 in words is "twenty trillion, five hundred fifteen billion, four hundred twenty-two million, twenty thousand, two hundred thirty-five".