12202011002021 has 12 divisors (see below), whose sum is σ = 12256181467500. Its totient is φ = 12148078504128.

The previous prime is 12202011001963. The next prime is 12202011002057. The reversal of 12202011002021 is 12020011020221.

It can be written as a sum of positive squares in 2 ways, for example, as 11299917556225 + 902093445796 = 3361535^2 + 949786^2 .

It is not a de Polignac number, because 12202011002021 - 2¹⁰ = 12202011000997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202011001987 and 12202011002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202011001021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265532555 + ... + 265578503.

It is an arithmetic number, because the mean of its divisors is an integer number (1021348455625).

Almost surely, 2^{12202011002021} is an apocalyptic number.

It is an amenable number.

12202011002021 is a deficient number, since it is larger than the sum of its proper divisors (54170465479).

12202011002021 is an frugal number, since it uses more digits than its factorization.

12202011002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51076 (or 50837 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12202011002021 its reverse (12020011020221), we get a palindrome (24222022022242).

It can be divided in two parts, 1220201 and 1002021, that added together give a palindrome (2222222).

The spelling of 12202011002021 in words is "twelve trillion, two hundred two billion, eleven million, two thousand, twenty-one".