12202120211021 has 16 divisors (see below), whose sum is σ = 13219780051968. Its totient is φ = 11195842507200.

The previous prime is 12202120211011. The next prime is 12202120211051. The reversal of 12202120211021 is 12011202120221.

It is not a de Polignac number, because 12202120211021 - 2⁶ = 12202120210957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202120211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1302275 + ... + 5108831.

It is an arithmetic number, because the mean of its divisors is an integer number (826236253248).

Almost surely, 2^{12202120211021} is an apocalyptic number.

It is an amenable number.

12202120211021 is a deficient number, since it is larger than the sum of its proper divisors (1017659840947).

12202120211021 is a wasteful number, since it uses less digits than its factorization.

12202120211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3808052.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12202120211021 its reverse (12011202120221), we get a palindrome (24213322331242).

The spelling of 12202120211021 in words is "twelve trillion, two hundred two billion, one hundred twenty million, two hundred eleven thousand, twenty-one".