101220112222220 has 12 divisors (see below), whose sum is σ = 212562235666704. Its totient is φ = 40488044888880.

The previous prime is 101220112222211. The next prime is 101220112222231. The reversal of 101220112222220 is 22222211022101.

It is a super-2 number, since 2×101220112222220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5061005611111 = 101220112222220 / (1 + 0 + 1 + 2 + 2 + 0 + 1 + 1 + 2 + 2 + 2 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 101220112222192 and 101220112222201.

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 3 ways as a sum of consecutive naturals, for example, 2530502805536 + ... + 2530502805575.

It is an arithmetic number, because the mean of its divisors is an integer number (17713519638892).

Almost surely, 2^{101220112222220} is an apocalyptic number.

101220112222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101220112222220 is an abundant number, since it is smaller than the sum of its proper divisors (111342123444484).

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

101220112222220 is a wasteful number, since it uses less digits than its factorization.

101220112222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061005611120 (or 5061005611118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 101220112222220 its reverse (22222211022101), we get a palindrome (123442323244321).

The spelling of 101220112222220 in words is "one hundred one trillion, two hundred twenty billion, one hundred twelve million, two hundred twenty-two thousand, two hundred twenty".