121022211001000 has 64 divisors (see below), whose sum is σ = 283197445839360. Its totient is φ = 48407949000000.

The previous prime is 121022211000991. The next prime is 121022211001031. The reversal of 121022211001000 is 100112220121.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 51808225 + ... + 54093775.

It is an arithmetic number, because the mean of its divisors is an integer number (4424960091240).

Almost surely, 2^{121022211001000} is an apocalyptic number.

121022211001000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022211001000 is an abundant number, since it is smaller than the sum of its proper divisors (162175234838360).

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

121022211001000 is a wasteful number, since it uses less digits than its factorization.

121022211001000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338523 (or 2338509 counting only the distinct ones).

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

Adding to 121022211001000 its reverse (100112220121), we get a palindrome (121122323221121).

The spelling of 121022211001000 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred eleven million, one thousand".