101120021210 has 32 divisors (see below), whose sum is σ = 198702458640. Its totient is φ = 36825159168.

The previous prime is 101120021209. The next prime is 101120021263. The reversal of 101120021210 is 12120021101.

It can be written as a sum of positive squares in 8 ways, for example, as 14493992881 + 86626028329 = 120391^2 + 294323^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101120021191 and 101120021200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5318225 + ... + 5337204.

Almost surely, 2^101120021210 is an apocalyptic number.

101120021210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101120021210 is a deficient number, since it is larger than the sum of its proper divisors (97582437430).

101120021210 is a wasteful number, since it uses less digits than its factorization.

101120021210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655522.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101120021210 its reverse (12120021101), we get a palindrome (113240042311).

The spelling of 101120021210 in words is "one hundred one billion, one hundred twenty million, twenty-one thousand, two hundred ten".