121020012221101 has 16 divisors (see below), whose sum is σ = 148977550614528. Its totient is φ = 96020686911600.

The previous prime is 121020012221047. The next prime is 121020012221111. The reversal of 121020012221101 is 101122210020121.

It is a cyclic number.

It is not a de Polignac number, because 121020012221101 - 2¹⁵ = 121020012188333 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 (121020012221111) 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, 12123819115 + ... + 12123829096.

It is an arithmetic number, because the mean of its divisors is an integer number (9311096913408).

Almost surely, 2^{121020012221101} is an apocalyptic number.

It is an amenable number.

121020012221101 is a deficient number, since it is larger than the sum of its proper divisors (27957538393427).

121020012221101 is a wasteful number, since it uses less digits than its factorization.

121020012221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24247648272.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121020012221101 its reverse (101122210020121), we get a palindrome (222142222241222).

The spelling of 121020012221101 in words is "one hundred twenty-one trillion, twenty billion, twelve million, two hundred twenty-one thousand, one hundred one".