1022212110020 has 12 divisors (see below), whose sum is σ = 2146645431084. Its totient is φ = 408884844000.

The previous prime is 1022212110019. The next prime is 1022212110037. The reversal of 1022212110020 is 200112122201.

It can be written as a sum of positive squares in 2 ways, for example, as 331225572484 + 690986537536 = 575522^2 + 831256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1022212109977 and 1022212110004.

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, 25555302731 + ... + 25555302770.

It is an arithmetic number, because the mean of its divisors is an integer number (178887119257).

Almost surely, 2^{1022212110020} is an apocalyptic number.

1022212110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022212110020 is an abundant number, since it is smaller than the sum of its proper divisors (1124433321064).

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

1022212110020 is a wasteful number, since it uses less digits than its factorization.

1022212110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51110605510 (or 51110605508 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1022212110020 its reverse (200112122201), we get a palindrome (1222324232221).

The spelling of 1022212110020 in words is "one trillion, twenty-two billion, two hundred twelve million, one hundred ten thousand, twenty".