121023212005 has 8 divisors (see below), whose sum is σ = 145505539872. Its totient is φ = 96633445968.

The previous prime is 121023211997. The next prime is 121023212021. The reversal of 121023212005 is 500212320121.

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 121023212005 - 2³ = 121023211997 is a prime.

It is a super-2 number, since 2×121023212005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23137579 + ... + 23142808.

It is an arithmetic number, because the mean of its divisors is an integer number (18188192484).

Almost surely, 2^121023212005 is an apocalyptic number.

It is an amenable number.

121023212005 is a deficient number, since it is larger than the sum of its proper divisors (24482327867).

121023212005 is an equidigital number, since it uses as much as digits as its factorization.

121023212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46280915.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 121023212005 its reverse (500212320121), we get a palindrome (621235532126).

The spelling of 121023212005 in words is "one hundred twenty-one billion, twenty-three million, two hundred twelve thousand, five".