10222111222020 has 144 divisors (see below), whose sum is σ = 31088154482112. Its totient is φ = 2718775445760.

The previous prime is 10222111221997. The next prime is 10222111222031. The reversal of 10222111222020 is 2022211122201.

It is a happy number.

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 = 10222111221984 and 10222111222002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 136748055 + ... + 136822785.

Almost surely, 2^{10222111222020} is an apocalyptic number.

10222111222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10222111222020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15544077241056).

10222111222020 is an abundant number, since it is smaller than the sum of its proper divisors (20866043260092).

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

10222111222020 is a wasteful number, since it uses less digits than its factorization.

10222111222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76722 (or 76717 counting only the distinct ones).

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

Adding to 10222111222020 its reverse (2022211122201), we get a palindrome (12244322344221).

The spelling of 10222111222020 in words is "ten trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, twenty".