121022101110021 has 8 divisors (see below), whose sum is σ = 161380187876544. Its totient is φ = 80672707541760.

The previous prime is 121022101109999. The next prime is 121022101110041. The reversal of 121022101110021 is 120011101220121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121022101110021 - 2¹⁴ = 121022101093637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022101110041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2173267081 + ... + 2173322766.

It is an arithmetic number, because the mean of its divisors is an integer number (20172523484568).

Almost surely, 2^{121022101110021} is an apocalyptic number.

It is an amenable number.

121022101110021 is a deficient number, since it is larger than the sum of its proper divisors (40358086766523).

121022101110021 is an equidigital number, since it uses as much as digits as its factorization.

121022101110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346599131.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121022101110021 its reverse (120011101220121), we get a palindrome (241033202330142).

The spelling of 121022101110021 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred one million, one hundred ten thousand, twenty-one".