121020102021121 has 8 divisors (see below), whose sum is σ = 122445968388224. Its totient is φ = 119599060921920.

The previous prime is 121020102021061. The next prime is 121020102021167. The reversal of 121020102021121 is 121120201020121.

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 121020102021121 - 2⁴¹ = 118821078765569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121020102021095 and 121020102021104.

It is not an unprimeable number, because it can be changed into a prime (121020102028121) 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, 1206266520 + ... + 1206366841.

It is an arithmetic number, because the mean of its divisors is an integer number (15305746048528).

Almost surely, 2^{121020102021121} is an apocalyptic number.

It is an amenable number.

121020102021121 is a deficient number, since it is larger than the sum of its proper divisors (1425866367103).

121020102021121 is a wasteful number, since it uses less digits than its factorization.

121020102021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412633951.

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

Adding to 121020102021121 its reverse (121120201020121), we get a palindrome (242140303041242).

The spelling of 121020102021121 in words is "one hundred twenty-one trillion, twenty billion, one hundred two million, twenty-one thousand, one hundred twenty-one".