120202020011 has 4 divisors (see below), whose sum is σ = 120581206512. Its totient is φ = 119822833512.

The previous prime is 120202019981. The next prime is 120202020013. The reversal of 120202020011 is 110020202021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110020202021 = 10223 ⋅10762027.

It is a cyclic number.

It is not a de Polignac number, because 120202020011 - 2⁶ = 120202019947 is a prime.

It is a super-2 number, since 2×120202020011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120202019974 and 120202020001.

It is not an unprimeable number, because it can be changed into a prime (120202020013) 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, 189592775 + ... + 189593408.

It is an arithmetic number, because the mean of its divisors is an integer number (30145301628).

Almost surely, 2^120202020011 is an apocalyptic number.

120202020011 is a deficient number, since it is larger than the sum of its proper divisors (379186501).

120202020011 is an equidigital number, since it uses as much as digits as its factorization.

120202020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379186500.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120202020011 its reverse (110020202021), we get a palindrome (230222222032).

The spelling of 120202020011 in words is "one hundred twenty billion, two hundred two million, twenty thousand, eleven".