201121102111010 has 8 divisors (see below), whose sum is σ = 362017983799836. Its totient is φ = 80448440844400.

The previous prime is 201121102110961. The next prime is 201121102111019. The reversal of 201121102111010 is 10111201121102.

201121102111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 198524521156129 + 2596580954881 = 14089873^2 + 1611391^2 .

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

It is a super-2 number, since 2×201121102111010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201121102111019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10056055105541 + ... + 10056055105560.

Almost surely, 2^{201121102111010} is an apocalyptic number.

201121102111010 is a deficient number, since it is larger than the sum of its proper divisors (160896881688826).

201121102111010 is a wasteful number, since it uses less digits than its factorization.

201121102111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20112110211108.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201121102111010 its reverse (10111201121102), we get a palindrome (211232303232112).

The spelling of 201121102111010 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred two million, one hundred eleven thousand, ten".