201011215225530 has 16 divisors (see below), whose sum is σ = 482426916541344. Its totient is φ = 53602990726800.

The previous prime is 201011215225451. The next prime is 201011215225537. The reversal of 201011215225530 is 35522512110102.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 6700373840851 = 201011215225530 / (2 + 0 + 1 + 0 + 1 + 1 + 2 + 1 + 5 + 2 + 2 + 5 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (201011215225537) 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, 3350186920396 + ... + 3350186920455.

It is an arithmetic number, because the mean of its divisors is an integer number (30151682283834).

Almost surely, 2^{201011215225530} is an apocalyptic number.

201011215225530 is an abundant number, since it is smaller than the sum of its proper divisors (281415701315814).

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

201011215225530 is a wasteful number, since it uses less digits than its factorization.

201011215225530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700373840861.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 201011215225530 its reverse (35522512110102), we get a palindrome (236533727335632).

The spelling of 201011215225530 in words is "two hundred one trillion, eleven billion, two hundred fifteen million, two hundred twenty-five thousand, five hundred thirty".