210120022222111 has 32 divisors (see below), whose sum is σ = 230848190835840. Its totient is φ = 190363793657856.

The previous prime is 210120022222109. The next prime is 210120022222141. The reversal of 210120022222111 is 111222220021012.

It is not a de Polignac number, because 210120022222111 - 2¹ = 210120022222109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120022222141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215456851 + ... + 216429883.

It is an arithmetic number, because the mean of its divisors is an integer number (7214005963620).

Almost surely, 2^{210120022222111} is an apocalyptic number.

210120022222111 is a deficient number, since it is larger than the sum of its proper divisors (20728168613729).

210120022222111 is a wasteful number, since it uses less digits than its factorization.

210120022222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974403.

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

Adding to 210120022222111 its reverse (111222220021012), we get a palindrome (321342242243123).

The spelling of 210120022222111 in words is "two hundred ten trillion, one hundred twenty billion, twenty-two million, two hundred twenty-two thousand, one hundred eleven".