201525421322322 has 48 divisors (see below), whose sum is σ = 444424852085760. Its totient is φ = 65979205116000.

The previous prime is 201525421322321. The next prime is 201525421322333. The reversal of 201525421322322 is 223223124525102.

201525421322322 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 2 + 5 + 4 + 2 + 1 + 322 + 322 = 666.

It is a super-2 number, since 2×201525421322322² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201525421322321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81210429 + ... + 83655152.

It is an arithmetic number, because the mean of its divisors is an integer number (9258851085120).

Almost surely, 2^{201525421322322} is an apocalyptic number.

201525421322322 is an abundant number, since it is smaller than the sum of its proper divisors (242899430763438).

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

201525421322322 is a wasteful number, since it uses less digits than its factorization.

201525421322322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164866799 (or 164866796 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 201525421322322 its reverse (223223124525102), we get a palindrome (424748545847424).

The spelling of 201525421322322 in words is "two hundred one trillion, five hundred twenty-five billion, four hundred twenty-one million, three hundred twenty-two thousand, three hundred twenty-two".