101121021210 has 32 divisors (see below), whose sum is σ = 264753220032. Its totient is φ = 24514186880.

The previous prime is 101121021203. The next prime is 101121021217. The reversal of 101121021210 is 12120121101.

It is an interprime number because it is at equal distance from previous prime (101121021203) and next prime (101121021217).

It is not an unprimeable number, because it can be changed into a prime (101121021217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153213339 + ... + 153213998.

It is an arithmetic number, because the mean of its divisors is an integer number (8273538126).

Almost surely, 2^101121021210 is an apocalyptic number.

101121021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101121021210 is an abundant number, since it is smaller than the sum of its proper divisors (163632198822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101121021210 is a wasteful number, since it uses less digits than its factorization.

101121021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306427358.

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

Adding to 101121021210 its reverse (12120121101), we get a palindrome (113241142311).

The spelling of 101121021210 in words is "one hundred one billion, one hundred twenty-one million, twenty-one thousand, two hundred ten".