101210212220 has 48 divisors (see below), whose sum is σ = 230169612960. Its totient is φ = 37161136896.

The previous prime is 101210212219. The next prime is 101210212241. The reversal of 101210212220 is 22212012101.

It is a junction number, because it is equal to n+sod(n) for n = 101210212195 and 101210212204.

It is a congruent number.

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, 1040807 + ... + 1133886.

It is an arithmetic number, because the mean of its divisors is an integer number (4795200270).

Almost surely, 2^101210212220 is an apocalyptic number.

101210212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101210212220 is an abundant number, since it is smaller than the sum of its proper divisors (128959400740).

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

101210212220 is a wasteful number, since it uses less digits than its factorization.

101210212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174894 (or 2174892 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101210212220 its reverse (22212012101), we get a palindrome (123422224321).

The spelling of 101210212220 in words is "one hundred one billion, two hundred ten million, two hundred twelve thousand, two hundred twenty".