201002012233170 has 128 divisors (see below), whose sum is σ = 511854422261760. Its totient is φ = 50373565320960.

The previous prime is 201002012233147. The next prime is 201002012233171. The reversal of 201002012233170 is 71332210200102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201002012233170.

It is not an unprimeable number, because it can be changed into a prime (201002012233171) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 618265260 + ... + 618590280.

It is an arithmetic number, because the mean of its divisors is an integer number (3998862673920).

Almost surely, 2^{201002012233170} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201002012233170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255927211130880).

201002012233170 is an abundant number, since it is smaller than the sum of its proper divisors (310852410028590).

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

201002012233170 is a wasteful number, since it uses less digits than its factorization.

201002012233170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333720.

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 201002012233170 its reverse (71332210200102), we get a palindrome (272334222433272).

The spelling of 201002012233170 in words is "two hundred one trillion, two billion, twelve million, two hundred thirty-three thousand, one hundred seventy".