1021020122010 has 64 divisors (see below), whose sum is σ = 2801658212352. Its totient is φ = 233280538176.

The previous prime is 1021020121973. The next prime is 1021020122063. The reversal of 1021020122010 is 102210201201.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 479592 + ... + 1507331.

It is an arithmetic number, because the mean of its divisors is an integer number (43775909568).

Almost surely, 2^{1021020122010} is an apocalyptic number.

1021020122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021020122010 is an abundant number, since it is smaller than the sum of its proper divisors (1780638090342).

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

1021020122010 is a wasteful number, since it uses less digits than its factorization.

1021020122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989387.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021020122010 its reverse (102210201201), we get a palindrome (1123230323211).

The spelling of 1021020122010 in words is "one trillion, twenty-one billion, twenty million, one hundred twenty-two thousand, ten".