1101200021121 has 32 divisors (see below), whose sum is σ = 1512621589248. Its totient is φ = 712080495360.

The previous prime is 1101200021099. The next prime is 1101200021149. The reversal of 1101200021121 is 1211200021011.

It is not a de Polignac number, because 1101200021121 - 2²⁷ = 1101065803393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101200021097 and 1101200021106.

It is not an unprimeable number, because it can be changed into a prime (1101200021821) 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, 146024611 + ... + 146032151.

It is an arithmetic number, because the mean of its divisors is an integer number (47269424664).

Almost surely, 2^{1101200021121} is an apocalyptic number.

It is an amenable number.

1101200021121 is a deficient number, since it is larger than the sum of its proper divisors (411421568127).

1101200021121 is a wasteful number, since it uses less digits than its factorization.

1101200021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11481.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1101200021121 its reverse (1211200021011), we get a palindrome (2312400042132).

The spelling of 1101200021121 in words is "one trillion, one hundred one billion, two hundred million, twenty-one thousand, one hundred twenty-one".