210120022122011 has 4 divisors (see below), whose sum is σ = 210141338964792. Its totient is φ = 210098705279232.

The previous prime is 210120022121969. The next prime is 210120022122013. The reversal of 210120022122011 is 110221220021012.

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 210120022122011 - 2²⁶ = 210119955013147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120022122013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10658406605 + ... + 10658426318.

It is an arithmetic number, because the mean of its divisors is an integer number (52535334741198).

Almost surely, 2^{210120022122011} is an apocalyptic number.

210120022122011 is a deficient number, since it is larger than the sum of its proper divisors (21316842781).

210120022122011 is an equidigital number, since it uses as much as digits as its factorization.

210120022122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21316842780.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210120022122011 its reverse (110221220021012), we get a palindrome (320341242143023).

The spelling of 210120022122011 in words is "two hundred ten trillion, one hundred twenty billion, twenty-two million, one hundred twenty-two thousand, eleven".