1211120202099 has 16 divisors (see below), whose sum is σ = 1617467473664. Its totient is φ = 806093402400.

The previous prime is 1211120202091. The next prime is 1211120202143. The reversal of 1211120202099 is 9902020211121.

It is not a de Polignac number, because 1211120202099 - 2³ = 1211120202091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211120202091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47037369 + ... + 47063109.

It is an arithmetic number, because the mean of its divisors is an integer number (101091717104).

Almost surely, 2^{1211120202099} is an apocalyptic number.

1211120202099 is a deficient number, since it is larger than the sum of its proper divisors (406347271565).

1211120202099 is a wasteful number, since it uses less digits than its factorization.

1211120202099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50778.

The product of its (nonzero) digits is 1296, while the sum is 30.

It can be divided in two parts, 12 and 11120202099, that added together give a palindrome (11120202111).

The spelling of 1211120202099 in words is "one trillion, two hundred eleven billion, one hundred twenty million, two hundred two thousand, ninety-nine".