1021102021010 has 8 divisors (see below), whose sum is σ = 1837983637836. Its totient is φ = 408440808400.

The previous prime is 1021102020997. The next prime is 1021102021019. The reversal of 1021102021010 is 101202011201.

It can be written as a sum of positive squares in 2 ways, for example, as 890869811881 + 130232209129 = 943859^2 + 360877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1021102020982 and 1021102021000.

It is not an unprimeable number, because it can be changed into a prime (1021102021019) by changing a digit.

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, 51055101041 + ... + 51055101060.

Almost surely, 2^{1021102021010} is an apocalyptic number.

1021102021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021102021010 is a deficient number, since it is larger than the sum of its proper divisors (816881616826).

1021102021010 is a wasteful number, since it uses less digits than its factorization.

1021102021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102110202108.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021102021010 its reverse (101202011201), we get a palindrome (1122304032211).

The spelling of 1021102021010 in words is "one trillion, twenty-one billion, one hundred two million, twenty-one thousand, ten".