202012121011 has 8 divisors (see below), whose sum is σ = 204877576800. Its totient is φ = 199147226880.

The previous prime is 202012120991. The next prime is 202012121021. The reversal of 202012121011 is 110121210202.

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

It is a cyclic number.

It is not a de Polignac number, because 202012121011 - 2⁵ = 202012120979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202012120982 and 202012121000.

It is not an unprimeable number, because it can be changed into a prime (202012121021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612445 + ... + 882673.

It is an arithmetic number, because the mean of its divisors is an integer number (25609697100).

Almost surely, 2^202012121011 is an apocalyptic number.

202012121011 is a deficient number, since it is larger than the sum of its proper divisors (2865455789).

202012121011 is a wasteful number, since it uses less digits than its factorization.

202012121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280829.

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

Adding to 202012121011 its reverse (110121210202), we get a palindrome (312133331213).

The spelling of 202012121011 in words is "two hundred two billion, twelve million, one hundred twenty-one thousand, eleven".