101020210 has 16 divisors (see below), whose sum is σ = 181982016. Its totient is φ = 40375728.

The previous prime is 101020189. The next prime is 101020217. The reversal of 101020210 is 12020101.

It is a junction number, because it is equal to n+sod(n) for n = 101020193 and 101020202.

It is not an unprimeable number, because it can be changed into a prime (101020217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12157 + ... + 18703.

It is an arithmetic number, because the mean of its divisors is an integer number (11373876).

Almost surely, 2^101020210 is an apocalyptic number.

101020210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101020210 is a deficient number, since it is larger than the sum of its proper divisors (80961806).

101020210 is a wasteful number, since it uses less digits than its factorization.

101020210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8097.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 101020210 is about 10050.8810559075. The cubic root of 101020210 is about 465.7320108085.

Adding to 101020210 its reverse (12020101), we get a palindrome (113040311).

The spelling of 101020210 in words is "one hundred one million, twenty thousand, two hundred ten".