101220102122220 has 36 divisors (see below), whose sum is σ = 307034309771280. Its totient is φ = 26992027232544.

The previous prime is 101220102122219. The next prime is 101220102122281. The reversal of 101220102122220 is 22221201022101.

It is a happy number.

101220102122220 is a `hidden beast` number, since 1 + 0 + 1 + 220 + 10 + 212 + 2 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 101220102122193 and 101220102122202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281166950160 + ... + 281166950519.

It is an arithmetic number, because the mean of its divisors is an integer number (8528730826980).

Almost surely, 2^{101220102122220} is an apocalyptic number.

101220102122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220102122220 is an abundant number, since it is smaller than the sum of its proper divisors (205814207649060).

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

101220102122220 is a wasteful number, since it uses less digits than its factorization.

101220102122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562333900694 (or 562333900689 counting only the distinct ones).

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

Adding to 101220102122220 its reverse (22221201022101), we get a palindrome (123441303144321).

The spelling of 101220102122220 in words is "one hundred one trillion, two hundred twenty billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty".