210100121011 has 16 divisors (see below), whose sum is σ = 237255459840. Its totient is φ = 184295774880.

The previous prime is 210100121003. The next prime is 210100121039. The reversal of 210100121011 is 110121001012.

It is not a de Polignac number, because 210100121011 - 2³ = 210100121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210100121041) 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, 289720 + ... + 710026.

It is an arithmetic number, because the mean of its divisors is an integer number (14828466240).

Almost surely, 2^210100121011 is an apocalyptic number.

210100121011 is a deficient number, since it is larger than the sum of its proper divisors (27155338829).

210100121011 is a wasteful number, since it uses less digits than its factorization.

210100121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421914.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 210100121011 its reverse (110121001012), we get a palindrome (320221122023).

The spelling of 210100121011 in words is "two hundred ten billion, one hundred million, one hundred twenty-one thousand, eleven".