11121001211201 has 32 divisors (see below), whose sum is σ = 12821345944320. Its totient is φ = 9448981952256.

The previous prime is 11121001211189. The next prime is 11121001211279. The reversal of 11121001211201 is 10211210012111.

It is not a de Polignac number, because 11121001211201 - 2²⁶ = 11120934102337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121001211291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639533615 + ... + 639551003.

It is an arithmetic number, because the mean of its divisors is an integer number (400667060760).

Almost surely, 2^{11121001211201} is an apocalyptic number.

It is an amenable number.

11121001211201 is a deficient number, since it is larger than the sum of its proper divisors (1700344733119).

11121001211201 is a wasteful number, since it uses less digits than its factorization.

11121001211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19353.

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

Adding to 11121001211201 its reverse (10211210012111), we get a palindrome (21332211223312).

The spelling of 11121001211201 in words is "eleven trillion, one hundred twenty-one billion, one million, two hundred eleven thousand, two hundred one".