210102121101 has 16 divisors (see below), whose sum is σ = 280518178304. Its totient is φ = 139877149104.

The previous prime is 210102121081. The next prime is 210102121129. The reversal of 210102121101 is 101121201012.

It is not a de Polignac number, because 210102121101 - 2⁹ = 210102120589 is a prime.

It is a super-2 number, since 2×210102121101² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102121171) 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, 18608880 + ... + 18620166.

It is an arithmetic number, because the mean of its divisors is an integer number (17532386144).

Almost surely, 2^210102121101 is an apocalyptic number.

It is an amenable number.

210102121101 is a deficient number, since it is larger than the sum of its proper divisors (70416057203).

210102121101 is a wasteful number, since it uses less digits than its factorization.

210102121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200.

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

Adding to 210102121101 its reverse (101121201012), we get a palindrome (311223322113).

The spelling of 210102121101 in words is "two hundred ten billion, one hundred two million, one hundred twenty-one thousand, one hundred one".