201011421444240 has 160 divisors (see below), whose sum is σ = 682701610121856. Its totient is φ = 48520899604480.

The previous prime is 201011421444221. The next prime is 201011421444263. The reversal of 201011421444240 is 42444124110102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 201011421444198 and 201011421444207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162776919 + ... + 164007158.

Almost surely, 2^{201011421444240} is an apocalyptic number.

201011421444240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011421444240 is an abundant number, since it is smaller than the sum of its proper divisors (481690188677616).

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

201011421444240 is a wasteful number, since it uses less digits than its factorization.

201011421444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326784337 (or 326784331 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 201011421444240 its reverse (42444124110102), we get a palindrome (243455545554342).

The spelling of 201011421444240 in words is "two hundred one trillion, eleven billion, four hundred twenty-one million, four hundred forty-four thousand, two hundred forty".