201233012220 has 72 divisors (see below), whose sum is σ = 626904305664. Its totient is φ = 52211806848.

The previous prime is 201233012203. The next prime is 201233012237. The reversal of 201233012220 is 22210332102.

201233012220 is a `hidden beast` number, since 20 + 123 + 301 + 2 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (201233012203) and next prime (201233012237).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201233012193 and 201233012202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15100924 + ... + 15114243.

Almost surely, 2^201233012220 is an apocalyptic number.

201233012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201233012220 is an abundant number, since it is smaller than the sum of its proper divisors (425671293444).

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

201233012220 is a wasteful number, since it uses less digits than its factorization.

201233012220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30215219 (or 30215214 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201233012220 its reverse (22210332102), we get a palindrome (223443344322).

The spelling of 201233012220 in words is "two hundred one billion, two hundred thirty-three million, twelve thousand, two hundred twenty".