1020121102101 has 8 divisors (see below), whose sum is σ = 1440170967744. Its totient is φ = 640075985600.

The previous prime is 1020121102093. The next prime is 1020121102139. The reversal of 1020121102101 is 1012011210201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020121102101 - 2³ = 1020121102093 is a prime.

It is a super-2 number, since 2×1020121102101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020121102171) 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 7 ways as a sum of consecutive naturals, for example, 10001187225 + ... + 10001187326.

It is an arithmetic number, because the mean of its divisors is an integer number (180021370968).

Almost surely, 2^{1020121102101} is an apocalyptic number.

It is an amenable number.

1020121102101 is a deficient number, since it is larger than the sum of its proper divisors (420049865643).

1020121102101 is a wasteful number, since it uses less digits than its factorization.

1020121102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20002374571.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1020121102101 its reverse (1012011210201), we get a palindrome (2032132312302).

The spelling of 1020121102101 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred two thousand, one hundred one".