202101222211 has 12 divisors (see below), whose sum is σ = 236813386968. Its totient is φ = 171965163552.

The previous prime is 202101222199. The next prime is 202101222217. The reversal of 202101222211 is 112222101202.

It is a happy number.

It is not a de Polignac number, because 202101222211 - 2¹⁵ = 202101189443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202101222217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15046261 + ... + 15059686.

It is an arithmetic number, because the mean of its divisors is an integer number (19734448914).

Almost surely, 2^202101222211 is an apocalyptic number.

202101222211 is a deficient number, since it is larger than the sum of its proper divisors (34712164757).

202101222211 is a wasteful number, since it uses less digits than its factorization.

202101222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30106098 (or 30106091 counting only the distinct ones).

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

Adding to 202101222211 its reverse (112222101202), we get a palindrome (314323323413).

It can be divided in two parts, 20210 and 1222211, that added together give a palindrome (1242421).

The spelling of 202101222211 in words is "two hundred two billion, one hundred one million, two hundred twenty-two thousand, two hundred eleven".