201121100010010 has 8 divisors (see below), whose sum is σ = 362017980018036. Its totient is φ = 80448440004000.

The previous prime is 201121100009993. The next prime is 201121100010023. The reversal of 201121100010010 is 10010001121102.

It can be written as a sum of positive squares in 2 ways, for example, as 196074459070281 + 5046640939729 = 14002659^2 + 2246473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 20112110001001 = 201121100010010 / (2 + 0 + 1 + 1 + 2 + 1 + 1 + 0 + 0 + 0 + 1 + 0 + 0 + 1 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10056055000491 + ... + 10056055000510.

Almost surely, 2^{201121100010010} is an apocalyptic number.

201121100010010 is a deficient number, since it is larger than the sum of its proper divisors (160896880008026).

201121100010010 is a wasteful number, since it uses less digits than its factorization.

201121100010010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20112110001008.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 201121100010010 its reverse (10010001121102), we get a palindrome (211131101131112).

The spelling of 201121100010010 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred million, ten thousand, ten".