20210222121180 has 96 divisors (see below), whose sum is σ = 69647534713344. Its totient is φ = 4264134776064.

The previous prime is 20210222121179. The next prime is 20210222121217. The reversal of 20210222121180 is 8112122201202.

It is a self number, because there is not a number n which added to its sum of digits gives 20210222121180.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1850747482 + ... + 1850758401.

It is an arithmetic number, because the mean of its divisors is an integer number (725495153264).

Almost surely, 2^{20210222121180} is an apocalyptic number.

20210222121180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210222121180 is an abundant number, since it is smaller than the sum of its proper divisors (49437312592164).

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

20210222121180 is a wasteful number, since it uses less digits than its factorization.

20210222121180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701505915 (or 3701505913 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

Adding to 20210222121180 its reverse (8112122201202), we get a palindrome (28322344322382).

The spelling of 20210222121180 in words is "twenty trillion, two hundred ten billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred eighty".