20215212541152 has 48 divisors (see below), whose sum is σ = 53082383517072. Its totient is φ = 6736188231680.

The previous prime is 20215212541151. The next prime is 20215212541169. The reversal of 20215212541152 is 25114521251202.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20215212541151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34330743 + ... + 34914614.

It is an arithmetic number, because the mean of its divisors is an integer number (1105882989939).

Almost surely, 2^{20215212541152} is an apocalyptic number.

It is an amenable number.

20215212541152 is an abundant number, since it is smaller than the sum of its proper divisors (32867170975920).

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

20215212541152 is a wasteful number, since it uses less digits than its factorization.

20215212541152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69248411 (or 69248403 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

Adding to 20215212541152 its reverse (25114521251202), we get a palindrome (45329733792354).

The spelling of 20215212541152 in words is "twenty trillion, two hundred fifteen billion, two hundred twelve million, five hundred forty-one thousand, one hundred fifty-two".