121022011021 has 8 divisors (see below), whose sum is σ = 121278553344. Its totient is φ = 120765617280.

The previous prime is 121022011007. The next prime is 121022011027. The reversal of 121022011021 is 120110220121.

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 121022011021 - 2²³ = 121013622413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121022010992 and 121022011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022011027) 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, 1676740 + ... + 1747426.

It is an arithmetic number, because the mean of its divisors is an integer number (15159819168).

Almost surely, 2^121022011021 is an apocalyptic number.

It is an amenable number.

121022011021 is a deficient number, since it is larger than the sum of its proper divisors (256542323).

121022011021 is an equidigital number, since it uses as much as digits as its factorization.

121022011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74291.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121022011021 its reverse (120110220121), we get a palindrome (241132231142).

The spelling of 121022011021 in words is "one hundred twenty-one billion, twenty-two million, eleven thousand, twenty-one".