1202020120111 has 4 divisors (see below), whose sum is σ = 1243469089800. Its totient is φ = 1160571150424.

The previous prime is 1202020120039. The next prime is 1202020120117. The reversal of 1202020120111 is 1110210202021.

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 1202020120111 - 2⁷ = 1202020119983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202020120091 and 1202020120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202020120117) 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, 20724484801 + ... + 20724484858.

It is an arithmetic number, because the mean of its divisors is an integer number (310867272450).

Almost surely, 2^{1202020120111} is an apocalyptic number.

1202020120111 is a deficient number, since it is larger than the sum of its proper divisors (41448969689).

1202020120111 is an equidigital number, since it uses as much as digits as its factorization.

1202020120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41448969688.

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

Adding to 1202020120111 its reverse (1110210202021), we get a palindrome (2312230322132).

The spelling of 1202020120111 in words is "one trillion, two hundred two billion, twenty million, one hundred twenty thousand, one hundred eleven".