12222101211021 has 48 divisors (see below), whose sum is σ = 20459258870400. Its totient is φ = 7194280249728.

The previous prime is 12222101210959. The next prime is 12222101211043. The reversal of 12222101211021 is 12011210122221.

12222101211021 is a `hidden beast` number, since 1 + 222 + 210 + 1 + 211 + 0 + 21 = 666.

It is not a de Polignac number, because 12222101211021 - 2¹⁷ = 12222101079949 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12222101210985 and 12222101211003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222101211721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58123816 + ... + 58333713.

It is an arithmetic number, because the mean of its divisors is an integer number (426234559800).

Almost surely, 2^{12222101211021} is an apocalyptic number.

It is an amenable number.

12222101211021 is a deficient number, since it is larger than the sum of its proper divisors (8237157659379).

12222101211021 is a wasteful number, since it uses less digits than its factorization.

12222101211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116457587 (or 116457568 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12222101211021 its reverse (12011210122221), we get a palindrome (24233311333242).

The spelling of 12222101211021 in words is "twelve trillion, two hundred twenty-two billion, one hundred one million, two hundred eleven thousand, twenty-one".