201102121001 has 4 divisors (see below), whose sum is σ = 201662294400. Its totient is φ = 200541947604.

The previous prime is 201102120997. The next prime is 201102121007. The reversal of 201102121001 is 100121201102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201102121001 - 2² = 201102120997 is a prime.

It is a super-2 number, since 2×201102121001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201102121007) 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, 280086161 + ... + 280086878.

It is an arithmetic number, because the mean of its divisors is an integer number (50415573600).

Almost surely, 2^201102121001 is an apocalyptic number.

It is an amenable number.

201102121001 is a deficient number, since it is larger than the sum of its proper divisors (560173399).

201102121001 is an equidigital number, since it uses as much as digits as its factorization.

201102121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560173398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201102121001 its reverse (100121201102), we get a palindrome (301223322103).

The spelling of 201102121001 in words is "two hundred one billion, one hundred two million, one hundred twenty-one thousand, one".