121111021112000 has 56 divisors (see below), whose sum is σ = 299931443803680. Its totient is φ = 48444408441600.

The previous prime is 121111021111991. The next prime is 121111021112009. The reversal of 121111021112000 is 211120111121.

It is an interprime number because it is at equal distance from previous prime (121111021111991) and next prime (121111021112009).

It is not an unprimeable number, because it can be changed into a prime (121111021112009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7569430820 + ... + 7569446819.

Almost surely, 2^{121111021112000} is an apocalyptic number.

121111021112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121111021112000 is an abundant number, since it is smaller than the sum of its proper divisors (178820422691680).

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

121111021112000 is an equidigital number, since it uses as much as digits as its factorization.

121111021112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15138877666 (or 15138877646 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121111021112000 its reverse (211120111121), we get a palindrome (121322141223121).

The spelling of 121111021112000 in words is "one hundred twenty-one trillion, one hundred eleven billion, twenty-one million, one hundred twelve thousand".