202120101011 has 8 divisors (see below), whose sum is σ = 204998050080. Its totient is φ = 199245102912.

The previous prime is 202120100999. The next prime is 202120101097. The reversal of 202120101011 is 110101021202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202120101011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202120100983 and 202120101001.

It is not an unprimeable number, because it can be changed into a prime (202120101811) 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 7 ways as a sum of consecutive naturals, for example, 599600 + ... + 873933.

It is an arithmetic number, because the mean of its divisors is an integer number (25624756260).

Almost surely, 2^202120101011 is an apocalyptic number.

202120101011 is a deficient number, since it is larger than the sum of its proper divisors (2877949069).

202120101011 is a wasteful number, since it uses less digits than its factorization.

202120101011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475485.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202120101011 its reverse (110101021202), we get a palindrome (312221122213).

The spelling of 202120101011 in words is "two hundred two billion, one hundred twenty million, one hundred one thousand, eleven".