202120120011 has 4 divisors (see below), whose sum is σ = 269493493352. Its totient is φ = 134746746672.

The previous prime is 202120119983. The next prime is 202120120109. The reversal of 202120120011 is 110021021202.

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

It is not a de Polignac number, because 202120120011 - 2⁶ = 202120119947 is a prime.

It is a super-2 number, since 2×202120120011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120120711) 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, 33686686666 + ... + 33686686671.

It is an arithmetic number, because the mean of its divisors is an integer number (67373373338).

Almost surely, 2^202120120011 is an apocalyptic number.

202120120011 is a deficient number, since it is larger than the sum of its proper divisors (67373373341).

202120120011 is an equidigital number, since it uses as much as digits as its factorization.

202120120011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67373373340.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 202120120011 its reverse (110021021202), we get a palindrome (312141141213).

The spelling of 202120120011 in words is "two hundred two billion, one hundred twenty million, one hundred twenty thousand, eleven".