12211202123021 has 32 divisors (see below), whose sum is σ = 13808555481600. Its totient is φ = 10702683763200.

The previous prime is 12211202122991. The next prime is 12211202123041. The reversal of 12211202123021 is 12032120211221.

It is not a de Polignac number, because 12211202123021 - 2⁴² = 7813155611917 is a prime.

It is a super-2 number, since 2×12211202123021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12211202122984 and 12211202123002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211202123041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36570380 + ... + 36902778.

It is an arithmetic number, because the mean of its divisors is an integer number (431517358800).

Almost surely, 2^{12211202123021} is an apocalyptic number.

12211202123021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12211202123021 is a deficient number, since it is larger than the sum of its proper divisors (1597353358579).

12211202123021 is a wasteful number, since it uses less digits than its factorization.

12211202123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333557.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12211202123021 its reverse (12032120211221), we get a palindrome (24243322334242).

The spelling of 12211202123021 in words is "twelve trillion, two hundred eleven billion, two hundred two million, one hundred twenty-three thousand, twenty-one".