1101200212021 has 16 divisors (see below), whose sum is σ = 1358467987968. Its totient is φ = 869257728000.

The previous prime is 1101200212019. The next prime is 1101200212039. The reversal of 1101200212021 is 1202120021011.

It is a cyclic number.

It is not a de Polignac number, because 1101200212021 - 2¹ = 1101200212019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1101200211992 and 1101200212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101200212621) 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, 13999180 + ... + 14077621.

It is an arithmetic number, because the mean of its divisors is an integer number (84904249248).

Almost surely, 2^{1101200212021} is an apocalyptic number.

It is an amenable number.

1101200212021 is a deficient number, since it is larger than the sum of its proper divisors (257267775947).

1101200212021 is a wasteful number, since it uses less digits than its factorization.

1101200212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28077252.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1101200212021 its reverse (1202120021011), we get a palindrome (2303320233032).

The spelling of 1101200212021 in words is "one trillion, one hundred one billion, two hundred million, two hundred twelve thousand, twenty-one".