22212000121 has 4 divisors (see below), whose sum is σ = 22304937600. Its totient is φ = 22119062644.

The previous prime is 22212000119. The next prime is 22212000127. The reversal of 22212000121 is 12100021222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12100021222 = 2 ⋅6050010611.

It is a cyclic number.

It is not a de Polignac number, because 22212000121 - 2¹ = 22212000119 is a prime.

It is a super-3 number, since 3×22212000121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212000127) 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 3 ways as a sum of consecutive naturals, for example, 46468381 + ... + 46468858.

It is an arithmetic number, because the mean of its divisors is an integer number (5576234400).

Almost surely, 2^22212000121 is an apocalyptic number.

It is an amenable number.

22212000121 is a deficient number, since it is larger than the sum of its proper divisors (92937479).

22212000121 is an equidigital number, since it uses as much as digits as its factorization.

22212000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92937478.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22212000121 its reverse (12100021222), we get a palindrome (34312021343).

The spelling of 22212000121 in words is "twenty-two billion, two hundred twelve million, one hundred twenty-one", and thus it is an aban number.