1020121021102 has 16 divisors (see below), whose sum is σ = 1680748594560. Its totient is φ = 462205862712.

The previous prime is 1020121021097. The next prime is 1020121021109. The reversal of 1020121021102 is 2011201210201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020121021109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583592388 + ... + 583594135.

It is an arithmetic number, because the mean of its divisors is an integer number (105046787160).

Almost surely, 2^{1020121021102} is an apocalyptic number.

1020121021102 is a deficient number, since it is larger than the sum of its proper divisors (660627573458).

1020121021102 is a wasteful number, since it uses less digits than its factorization.

1020121021102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167186567.

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

Adding to 1020121021102 its reverse (2011201210201), we get a palindrome (3031322231303).

The spelling of 1020121021102 in words is "one trillion, twenty billion, one hundred twenty-one million, twenty-one thousand, one hundred two".