121103020011021 has 16 divisors (see below), whose sum is σ = 161929222286400. Its totient is φ = 80506085327360.

The previous prime is 121103020011011. The next prime is 121103020011133. The reversal of 121103020011021 is 120110020301121.

It is a cyclic number.

It is not a de Polignac number, because 121103020011021 - 2⁹ = 121103020010509 is a prime.

It is a super-2 number, since 2×121103020011021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121103020011011) 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, 206827930 + ... + 207412628.

It is an arithmetic number, because the mean of its divisors is an integer number (10120576392900).

Almost surely, 2^{121103020011021} is an apocalyptic number.

It is an amenable number.

121103020011021 is a deficient number, since it is larger than the sum of its proper divisors (40826202275379).

121103020011021 is a wasteful number, since it uses less digits than its factorization.

121103020011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780636.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121103020011021 its reverse (120110020301121), we get a palindrome (241213040312142).

The spelling of 121103020011021 in words is "one hundred twenty-one trillion, one hundred three billion, twenty million, eleven thousand, twenty-one".