121001222000 has 40 divisors (see below), whose sum is σ = 292580959632. Its totient is φ = 48400488000.

The previous prime is 121001221987. The next prime is 121001222029. The reversal of 121001222000 is 222100121.

It is a happy number.

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

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, 30248306 + ... + 30252305.

Almost surely, 2^121001222000 is an apocalyptic number.

121001222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121001222000 is an abundant number, since it is smaller than the sum of its proper divisors (171579737632).

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

121001222000 is an equidigital number, since it uses as much as digits as its factorization.

121001222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60500634 (or 60500618 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 121001222000 its reverse (222100121), we get a palindrome (121223322121).

The spelling of 121001222000 in words is "one hundred twenty-one billion, one million, two hundred twenty-two thousand".