101210212220220 has 72 divisors (see below), whose sum is σ = 307271039362560. Its totient is φ = 26965941225600.

The previous prime is 101210212220137. The next prime is 101210212220387. The reversal of 101210212220220 is 22022212012101.

It is a happy number.

101210212220220 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 10 + 212 + 220 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101210212220193 and 101210212220202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244049535 + ... + 244463894.

It is an arithmetic number, because the mean of its divisors is an integer number (4267653324480).

Almost surely, 2^{101210212220220} is an apocalyptic number.

101210212220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101210212220220 is an abundant number, since it is smaller than the sum of its proper divisors (206060827142340).

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

101210212220220 is a wasteful number, since it uses less digits than its factorization.

101210212220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488514595 (or 488514590 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101210212220220 its reverse (22022212012101), we get a palindrome (123232424232321).

The spelling of 101210212220220 in words is "one hundred one trillion, two hundred ten billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty".