101222120201220 has 96 divisors (see below), whose sum is σ = 314927885865600. Its totient is φ = 26991311985792.

The previous prime is 101222120201197. The next prime is 101222120201239. The reversal of 101222120201220 is 22102021222101.

It is a happy number.

101222120201220 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 221 + 20 + 201 + 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 = 101222120201193 and 101222120201202.

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 31 ways as a sum of consecutive naturals, for example, 7316767 + ... + 15999353.

It is an arithmetic number, because the mean of its divisors is an integer number (3280498811100).

Almost surely, 2^{101222120201220} is an apocalyptic number.

101222120201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101222120201220 is an abundant number, since it is smaller than the sum of its proper divisors (213705765664380).

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

101222120201220 is a wasteful number, since it uses less digits than its factorization.

101222120201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8704194 (or 8704186 counting only the distinct ones).

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

Adding to 101222120201220 its reverse (22102021222101), we get a palindrome (123324141423321).

The spelling of 101222120201220 in words is "one hundred one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred one thousand, two hundred twenty".