210121011000201 has 16 divisors (see below), whose sum is σ = 320185368229248. Its totient is φ = 120068785200000.

The previous prime is 210121011000181. The next prime is 210121011000227. The reversal of 210121011000201 is 102000110121012.

It is not a de Polignac number, because 210121011000201 - 2¹⁵ = 210121010967433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210121011000001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7992300 + ... + 22002701.

It is an arithmetic number, because the mean of its divisors is an integer number (20011585514328).

Almost surely, 2^{210121011000201} is an apocalyptic number.

210121011000201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

210121011000201 is a deficient number, since it is larger than the sum of its proper divisors (110064357229047).

210121011000201 is a wasteful number, since it uses less digits than its factorization.

210121011000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30328592.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210121011000201 its reverse (102000110121012), we get a palindrome (312121121121213).

The spelling of 210121011000201 in words is "two hundred ten trillion, one hundred twenty-one billion, eleven million, two hundred one", and thus it is an aban number.