210120111020201 has 4 divisors (see below), whose sum is σ = 213256232080272. Its totient is φ = 206983989960132.

The previous prime is 210120111020173. The next prime is 210120111020207. The reversal of 210120111020201 is 102020111021012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210120111020201 - 2⁴² = 205722064509097 is a prime.

It is a super-2 number, since 2×210120111020201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120111020207) 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, 1568060529935 + ... + 1568060530068.

It is an arithmetic number, because the mean of its divisors is an integer number (53314058020068).

Almost surely, 2^{210120111020201} is an apocalyptic number.

It is an amenable number.

210120111020201 is a deficient number, since it is larger than the sum of its proper divisors (3136121060071).

210120111020201 is an equidigital number, since it uses as much as digits as its factorization.

210120111020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136121060070.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210120111020201 its reverse (102020111021012), we get a palindrome (312140222041213).

The spelling of 210120111020201 in words is "two hundred ten trillion, one hundred twenty billion, one hundred eleven million, twenty thousand, two hundred one".