121211013230000 has 100 divisors (see below), whose sum is σ = 293480793465288. Its totient is φ = 48481628160000.

The previous prime is 121211013229939. The next prime is 121211013230029. The reversal of 121211013230000 is 32310112121.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 178871819 + ... + 179548181.

Almost surely, 2^{121211013230000} is an apocalyptic number.

121211013230000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121211013230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146740396732644).

121211013230000 is an abundant number, since it is smaller than the sum of its proper divisors (172269780235288).

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

121211013230000 is an equidigital number, since it uses as much as digits as its factorization.

121211013230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694312 (or 694291 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121211013230000 its reverse (32310112121), we get a palindrome (121243323342121).

The spelling of 121211013230000 in words is "one hundred twenty-one trillion, two hundred eleven billion, thirteen million, two hundred thirty thousand".