201242224100 has 18 divisors (see below), whose sum is σ = 436695626514. Its totient is φ = 80496889600.

The previous prime is 201242224093. The next prime is 201242224121. The reversal of 201242224100 is 1422242102.

It can be written as a sum of positive squares in 3 ways, for example, as 59474944 + 201182749156 = 7712^2 + 448534^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1006211021 + ... + 1006211220.

Almost surely, 2^201242224100 is an apocalyptic number.

201242224100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201242224100 is an abundant number, since it is smaller than the sum of its proper divisors (235453402414).

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

201242224100 is a wasteful number, since it uses less digits than its factorization.

201242224100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012422255 (or 2012422248 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 201242224100 its reverse (1422242102), we get a palindrome (202664466202).

The spelling of 201242224100 in words is "two hundred one billion, two hundred forty-two million, two hundred twenty-four thousand, one hundred".