12202100101021 has 12 divisors (see below), whose sum is σ = 13045028374144. Its totient is φ = 11401294842000.

The previous prime is 12202100100973. The next prime is 12202100101049. The reversal of 12202100101021 is 12010100120221.

It is not a de Polignac number, because 12202100101021 - 2¹³ = 12202100092829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202100100992 and 12202100101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202100102021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233990655 + ... + 234042796.

Almost surely, 2^{12202100101021} is an apocalyptic number.

It is an amenable number.

12202100101021 is a deficient number, since it is larger than the sum of its proper divisors (842928273123).

12202100101021 is an equidigital number, since it uses as much as digits as its factorization.

12202100101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468033540 (or 468033511 counting only the distinct ones).

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

Adding to 12202100101021 its reverse (12010100120221), we get a palindrome (24212200221242).

The spelling of 12202100101021 in words is "twelve trillion, two hundred two billion, one hundred million, one hundred one thousand, twenty-one".