1020210122020 has 72 divisors (see below), whose sum is σ = 2339106751800. Its totient is φ = 373274625024.

The previous prime is 1020210122003. The next prime is 1020210122053. The reversal of 1020210122020 is 202210120201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 259596544 + 1019950525476 = 16112^2 + 1009926^2 .

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 23 ways as a sum of consecutive naturals, for example, 2226885 + ... + 2645644.

It is an arithmetic number, because the mean of its divisors is an integer number (32487593775).

Almost surely, 2^{1020210122020} is an apocalyptic number.

1020210122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020210122020 is an abundant number, since it is smaller than the sum of its proper divisors (1318896629780).

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

1020210122020 is a wasteful number, since it uses less digits than its factorization.

1020210122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872605 (or 4872584 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020210122020 its reverse (202210120201), we get a palindrome (1222420242221).

The spelling of 1020210122020 in words is "one trillion, twenty billion, two hundred ten million, one hundred twenty-two thousand, twenty".