121022105000 has 40 divisors (see below), whose sum is σ = 283554803730. Its totient is φ = 48408840000.

The previous prime is 121022104997. The next prime is 121022105023. The reversal of 121022105000 is 501220121.

It can be written as a sum of positive squares in 5 ways, for example, as 5488735396 + 115533369604 = 74086^2 + 339902^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12097211 + ... + 12107210.

Almost surely, 2^121022105000 is an apocalyptic number.

121022105000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022105000 is an abundant number, since it is smaller than the sum of its proper divisors (162532698730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121022105000 is an equidigital number, since it uses as much as digits as its factorization.

121022105000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24204447 (or 24204428 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 121022105000 its reverse (501220121), we get a palindrome (121523325121).

The spelling of 121022105000 in words is "one hundred twenty-one billion, twenty-two million, one hundred five thousand".