211222010220121 has 16 divisors (see below), whose sum is σ = 213149260139200. Its totient is φ = 209300636750400.

The previous prime is 211222010220103. The next prime is 211222010220131. The reversal of 211222010220121 is 121022010222112.

It is a cyclic number.

It is not a de Polignac number, because 211222010220121 - 2¹¹ = 211222010218073 is a prime.

It is a super-2 number, since 2×211222010220121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211222010220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1213700050 + ... + 1213874068.

It is an arithmetic number, because the mean of its divisors is an integer number (13321828758700).

Almost surely, 2^{211222010220121} is an apocalyptic number.

It is an amenable number.

211222010220121 is a deficient number, since it is larger than the sum of its proper divisors (1927249919079).

211222010220121 is a wasteful number, since it uses less digits than its factorization.

211222010220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190840.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 211222010220121 its reverse (121022010222112), we get a palindrome (332244020442233).

The spelling of 211222010220121 in words is "two hundred eleven trillion, two hundred twenty-two billion, ten million, two hundred twenty thousand, one hundred twenty-one".