11211202121001 has 8 divisors (see below), whose sum is σ = 14948352805344. Its totient is φ = 7474093092000.

The previous prime is 11211202120981. The next prime is 11211202121029. The reversal of 11211202121001 is 10012120211211.

It is a happy number.

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

It is not a de Polignac number, because 11211202121001 - 2¹³ = 11211202112809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11211202125001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9780331 + ... + 10866336.

It is an arithmetic number, because the mean of its divisors is an integer number (1868544100668).

Almost surely, 2^{11211202121001} is an apocalyptic number.

It is an amenable number.

11211202121001 is a deficient number, since it is larger than the sum of its proper divisors (3737150684343).

11211202121001 is a wasteful number, since it uses less digits than its factorization.

11211202121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20827671.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11211202121001 its reverse (10012120211211), we get a palindrome (21223322332212).

The spelling of 11211202121001 in words is "eleven trillion, two hundred eleven billion, two hundred two million, one hundred twenty-one thousand, one".