210020120201 has 4 divisors (see below), whose sum is σ = 210021040404. Its totient is φ = 210019200000.

The previous prime is 210020120117. The next prime is 210020120209. The reversal of 210020120201 is 102021020012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11246814601 + 198773305600 = 106051^2 + 445840^2 .

It is a cyclic number.

It is not a de Polignac number, because 210020120201 - 2¹⁴ = 210020103817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210020120209) 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, 168701 + ... + 669701.

It is an arithmetic number, because the mean of its divisors is an integer number (52505260101).

Almost surely, 2^210020120201 is an apocalyptic number.

It is an amenable number.

210020120201 is a deficient number, since it is larger than the sum of its proper divisors (920203).

210020120201 is an equidigital number, since it uses as much as digits as its factorization.

210020120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920202.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210020120201 its reverse (102021020012), we get a palindrome (312041140213).

The spelling of 210020120201 in words is "two hundred ten billion, twenty million, one hundred twenty thousand, two hundred one".