121011132103021 has 8 divisors (see below), whose sum is σ = 128152616546880. Its totient is φ = 113872223498688.

The previous prime is 121011132102997. The next prime is 121011132103039. The reversal of 121011132103021 is 120301231110121.

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 121011132103021 - 2⁵ = 121011132102989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121011132103021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121011132103091) 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, 643863151 + ... + 644051068.

It is an arithmetic number, because the mean of its divisors is an integer number (16019077068360).

Almost surely, 2^{121011132103021} is an apocalyptic number.

It is an amenable number.

121011132103021 is a deficient number, since it is larger than the sum of its proper divisors (7141484443859).

121011132103021 is a wasteful number, since it uses less digits than its factorization.

121011132103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287919763.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121011132103021 its reverse (120301231110121), we get a palindrome (241312363213142).

The spelling of 121011132103021 in words is "one hundred twenty-one trillion, eleven billion, one hundred thirty-two million, one hundred three thousand, twenty-one".