212222012000121 has 32 divisors (see below), whose sum is σ = 334125677145600. Its totient is φ = 132667548122880.

The previous prime is 212222012000099. The next prime is 212222012000123. The reversal of 212222012000121 is 121000210222212.

It is a happy number.

212222012000121 is a `hidden beast` number, since 2 + 122 + 220 + 1 + 200 + 0 + 121 = 666.

It is not a de Polignac number, because 212222012000121 - 2¹³ = 212222011991929 is a prime.

It is a super-3 number, since 3×212222012000121³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212222012000094 and 212222012000103.

It is not an unprimeable number, because it can be changed into a prime (212222012000123) 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, 852933406 + ... + 853182183.

It is an arithmetic number, because the mean of its divisors is an integer number (10441427410800).

Almost surely, 2^{212222012000121} is an apocalyptic number.

It is an amenable number.

212222012000121 is a deficient number, since it is larger than the sum of its proper divisors (121903665145479).

212222012000121 is a wasteful number, since it uses less digits than its factorization.

212222012000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706115886 (or 1706115880 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212222012000121 its reverse (121000210222212), we get a palindrome (333222222222333).

The spelling of 212222012000121 in words is "two hundred twelve trillion, two hundred twenty-two billion, twelve million, one hundred twenty-one", and thus it is an aban number.