121020021000101 has 8 divisors (see below), whose sum is σ = 127615764887520. Its totient is φ = 114446904022512.

The previous prime is 121020021000083. The next prime is 121020021000119. The reversal of 121020021000101 is 101000120020121.

It is an interprime number because it is at equal distance from previous prime (121020021000083) and next prime (121020021000119).

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 121020021000101 - 2¹⁰ = 121020020999077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020021000601) 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, 5656716470 + ... + 5656737863.

It is an arithmetic number, because the mean of its divisors is an integer number (15951970610940).

Almost surely, 2^{121020021000101} is an apocalyptic number.

It is an amenable number.

121020021000101 is a deficient number, since it is larger than the sum of its proper divisors (6595743887419).

121020021000101 is a wasteful number, since it uses less digits than its factorization.

121020021000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11313454915.

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

Adding to 121020021000101 its reverse (101000120020121), we get a palindrome (222020141020222).

The spelling of 121020021000101 in words is "one hundred twenty-one trillion, twenty billion, twenty-one million, one hundred one", and thus it is an aban number.