1101210201121 has 4 divisors (see below), whose sum is σ = 1101212554644. Its totient is φ = 1101207847600.

The previous prime is 1101210201107. The next prime is 1101210201137. The reversal of 1101210201121 is 1211020121011.

It is a happy number.

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 338216686096 + 762993515025 = 581564^2 + 873495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101210201121 - 2¹⁷ = 1101210070049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101210201181) 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, 210370 + ... + 1498891.

It is an arithmetic number, because the mean of its divisors is an integer number (275303138661).

Almost surely, 2^{1101210201121} is an apocalyptic number.

It is an amenable number.

1101210201121 is a deficient number, since it is larger than the sum of its proper divisors (2353523).

1101210201121 is an equidigital number, since it uses as much as digits as its factorization.

1101210201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353522.

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

Adding to 1101210201121 its reverse (1211020121011), we get a palindrome (2312230322132).

The spelling of 1101210201121 in words is "one trillion, one hundred one billion, two hundred ten million, two hundred one thousand, one hundred twenty-one".