212220121201 has 16 divisors (see below), whose sum is σ = 234860313600. Its totient is φ = 190156377600.

The previous prime is 212220121199. The next prime is 212220121229. The reversal of 212220121201 is 102121022212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212220121201 - 2¹ = 212220121199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212220121291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234336 + ... + 692353.

It is an arithmetic number, because the mean of its divisors is an integer number (14678769600).

Almost surely, 2^212220121201 is an apocalyptic number.

It is an amenable number.

212220121201 is a deficient number, since it is larger than the sum of its proper divisors (22640192399).

212220121201 is a wasteful number, since it uses less digits than its factorization.

212220121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927000.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212220121201 its reverse (102121022212), we get a palindrome (314341143413).

The spelling of 212220121201 in words is "two hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".