201230210988 has 36 divisors (see below), whose sum is σ = 510691833288. Its totient is φ = 66809496000.

The previous prime is 201230210983. The next prime is 201230210989. The reversal of 201230210988 is 889012032102.

201230210988 is a `hidden beast` number, since 201 + 230 + 210 + 9 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×201230210988² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (201230210981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11125881 + ... + 11143952.

It is an arithmetic number, because the mean of its divisors is an integer number (14185884258).

Almost surely, 2^201230210988 is an apocalyptic number.

It is an amenable number.

201230210988 is an abundant number, since it is smaller than the sum of its proper divisors (309461622300).

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

201230210988 is a wasteful number, since it uses less digits than its factorization.

201230210988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22270094 (or 22270089 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 201230210988 in words is "two hundred one billion, two hundred thirty million, two hundred ten thousand, nine hundred eighty-eight".