212121011201 has 8 divisors (see below), whose sum is σ = 231459508800. Its totient is φ = 192791641840.

The previous prime is 212121011171. The next prime is 212121011227. The reversal of 212121011201 is 102110121212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212121011201 - 2¹⁴ = 212120994817 is a prime.

It is a super-3 number, since 3×212121011201³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212121011101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2233421 + ... + 2326458.

It is an arithmetic number, because the mean of its divisors is an integer number (28932438600).

Almost surely, 2^212121011201 is an apocalyptic number.

It is an amenable number.

212121011201 is a deficient number, since it is larger than the sum of its proper divisors (19338497599).

212121011201 is a wasteful number, since it uses less digits than its factorization.

212121011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564119.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212121011201 its reverse (102110121212), we get a palindrome (314231132413).

It can be divided in two parts, 212121011 and 201, that added together give a palindrome (212121212).

The spelling of 212121011201 in words is "two hundred twelve billion, one hundred twenty-one million, eleven thousand, two hundred one".