1020222302420 has 12 divisors (see below), whose sum is σ = 2142466835124. Its totient is φ = 408088920960.

The previous prime is 1020222302419. The next prime is 1020222302441. The reversal of 1020222302420 is 242032220201.

It can be written as a sum of positive squares in 2 ways, for example, as 245843422276 + 774378880144 = 495826^2 + 879988^2 .

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: 51011115121 = 1020222302420 / (1 + 0 + 2 + 0 + 2 + 2 + 2 + 3 + 0 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1020222302392 and 1020222302401.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 25505557541 + ... + 25505557580.

It is an arithmetic number, because the mean of its divisors is an integer number (178538902927).

Almost surely, 2^{1020222302420} is an apocalyptic number.

1020222302420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020222302420 is an abundant number, since it is smaller than the sum of its proper divisors (1122244532704).

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

1020222302420 is a wasteful number, since it uses less digits than its factorization.

1020222302420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51011115130 (or 51011115128 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 1020222302420 its reverse (242032220201), we get a palindrome (1262254522621).

The spelling of 1020222302420 in words is "one trillion, twenty billion, two hundred twenty-two million, three hundred two thousand, four hundred twenty".