1202020201111 has 4 divisors (see below), whose sum is σ = 1211484927232. Its totient is φ = 1192555474992.

The previous prime is 1202020201043. The next prime is 1202020201117. The reversal of 1202020201111 is 1111020202021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1202020201111 - 2⁹ = 1202020200599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202020201091 and 1202020201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202020201117) 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, 4732362870 + ... + 4732363123.

It is an arithmetic number, because the mean of its divisors is an integer number (302871231808).

Almost surely, 2^{1202020201111} is an apocalyptic number.

1202020201111 is a deficient number, since it is larger than the sum of its proper divisors (9464726121).

1202020201111 is an equidigital number, since it uses as much as digits as its factorization.

1202020201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9464726120.

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

Adding to 1202020201111 its reverse (1111020202021), we get a palindrome (2313040403132).

The spelling of 1202020201111 in words is "one trillion, two hundred two billion, twenty million, two hundred one thousand, one hundred eleven".