202120122222211 has 4 divisors (see below), whose sum is σ = 202244350940632. Its totient is φ = 201995893503792.

The previous prime is 202120122222203. The next prime is 202120122222223. The reversal of 202120122222211 is 112222221021202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202120122222211 - 2³ = 202120122222203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120122222611) 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 3 ways as a sum of consecutive naturals, for example, 62114356770 + ... + 62114360023.

It is an arithmetic number, because the mean of its divisors is an integer number (50561087735158).

Almost surely, 2^{202120122222211} is an apocalyptic number.

202120122222211 is a deficient number, since it is larger than the sum of its proper divisors (124228718421).

202120122222211 is a wasteful number, since it uses less digits than its factorization.

202120122222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124228718420.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 202120122222211 its reverse (112222221021202), we get a palindrome (314342343243413).

The spelling of 202120122222211 in words is "two hundred two trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".