11020001211121 has 16 divisors (see below), whose sum is σ = 12732103957248. Its totient is φ = 9342889632000.

The previous prime is 11020001211077. The next prime is 11020001211133. The reversal of 11020001211121 is 12111210002011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11020001211121 - 2¹³ = 11020001202929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020001211151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22126540 + ... + 22619101.

It is an arithmetic number, because the mean of its divisors is an integer number (795756497328).

Almost surely, 2^{11020001211121} is an apocalyptic number.

It is an amenable number.

11020001211121 is a deficient number, since it is larger than the sum of its proper divisors (1712102746127).

11020001211121 is a wasteful number, since it uses less digits than its factorization.

11020001211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44746032.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11020001211121 its reverse (12111210002011), we get a palindrome (23131211213132).

The spelling of 11020001211121 in words is "eleven trillion, twenty billion, one million, two hundred eleven thousand, one hundred twenty-one".