1021110202102 has 32 divisors (see below), whose sum is σ = 1653977556000. Its totient is φ = 471024158208.

The previous prime is 1021110202081. The next prime is 1021110202103. The reversal of 1021110202102 is 2012020111201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021110202103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29173 + ... + 1429360.

It is an arithmetic number, because the mean of its divisors is an integer number (51686798625).

Almost surely, 2^{1021110202102} is an apocalyptic number.

1021110202102 is a deficient number, since it is larger than the sum of its proper divisors (632867353898).

1021110202102 is a wasteful number, since it uses less digits than its factorization.

1021110202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458960.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021110202102 its reverse (2012020111201), we get a palindrome (3033130313303).

Subtracting 1021110202102 from its reverse (2012020111201), we obtain a palindrome (990909909099).

The spelling of 1021110202102 in words is "one trillion, twenty-one billion, one hundred ten million, two hundred two thousand, one hundred two".