11001210120101 has 4 divisors (see below), whose sum is σ = 11001226334412. Its totient is φ = 11001193905792.

The previous prime is 11001210120053. The next prime is 11001210120113. The reversal of 11001210120101 is 10102101210011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3972088860100 + 7029121260001 = 1993010^2 + 2651249^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001210120101 - 2¹⁰ = 11001210119077 is a prime.

It is a super-2 number, since 2×11001210120101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001210120001) 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, 7042850 + ... + 8461923.

It is an arithmetic number, because the mean of its divisors is an integer number (2750306583603).

Almost surely, 2^{11001210120101} is an apocalyptic number.

It is an amenable number.

11001210120101 is a deficient number, since it is larger than the sum of its proper divisors (16214311).

11001210120101 is an equidigital number, since it uses as much as digits as its factorization.

11001210120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16214310.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11001210120101 its reverse (10102101210011), we get a palindrome (21103311330112).

The spelling of 11001210120101 in words is "eleven trillion, one billion, two hundred ten million, one hundred twenty thousand, one hundred one".