201222860 has 96 divisors (see below), whose sum is σ = 462938112. Its totient is φ = 73244160.

The previous prime is 201222841. The next prime is 201222869. The reversal of 201222860 is 68222102.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (201222869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1468712 + ... + 1468848.

It is an arithmetic number, because the mean of its divisors is an integer number (4822272).

Almost surely, 2^201222860 is an apocalyptic number.

201222860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231469056).

201222860 is an abundant number, since it is smaller than the sum of its proper divisors (261715252).

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

201222860 is a wasteful number, since it uses less digits than its factorization.

201222860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 201222860 is about 14185.3043675488. The cubic root of 201222860 is about 585.9930147839.

Adding to 201222860 its reverse (68222102), we get a palindrome (269444962).

The spelling of 201222860 in words is "two hundred one million, two hundred twenty-two thousand, eight hundred sixty".