210120022011 has 8 divisors (see below), whose sum is σ = 280298251584. Its totient is φ = 140010903560.

The previous prime is 210120022009. The next prime is 210120022043. The reversal of 210120022011 is 110220021012.

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 210120022011 - 2¹ = 210120022009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210120022061) 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, 17270685 + ... + 17282846.

It is an arithmetic number, because the mean of its divisors is an integer number (35037281448).

Almost surely, 2^210120022011 is an apocalyptic number.

210120022011 is a deficient number, since it is larger than the sum of its proper divisors (70178229573).

210120022011 is a wasteful number, since it uses less digits than its factorization.

210120022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34555561.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210120022011 its reverse (110220021012), we get a palindrome (320340043023).

Subtracting from 210120022011 its reverse (110220021012), we obtain a palindrome (99900000999).

The spelling of 210120022011 in words is "two hundred ten billion, one hundred twenty million, twenty-two thousand, eleven".