201006521351225 has 12 divisors (see below), whose sum is σ = 249249992860416. Its totient is φ = 160803987155280.

The previous prime is 201006521351191. The next prime is 201006521351323. The reversal of 201006521351225 is 522153125600102.

It is a happy number.

It is not a de Polignac number, because 201006521351225 - 2¹⁸ = 201006521089081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27407057 + ... + 33958206.

It is an arithmetic number, because the mean of its divisors is an integer number (20770832738368).

Almost surely, 2^{201006521351225} is an apocalyptic number.

201006521351225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201006521351225 is a deficient number, since it is larger than the sum of its proper divisors (48243471509191).

201006521351225 is a wasteful number, since it uses less digits than its factorization.

201006521351225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61496296 (or 61496291 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 201006521351225 its reverse (522153125600102), we get a palindrome (723159646951327).

The spelling of 201006521351225 in words is "two hundred one trillion, six billion, five hundred twenty-one million, three hundred fifty-one thousand, two hundred twenty-five".