121211020001120 has 96 divisors (see below), whose sum is σ = 344494477958400. Its totient is φ = 39370797467136.

The previous prime is 121211020001089. The next prime is 121211020001129. The reversal of 121211020001120 is 21100020112121.

It is a super-2 number, since 2×121211020001120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 121211020001095 and 121211020001104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121211020001129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2847982010 + ... + 2848024569.

It is an arithmetic number, because the mean of its divisors is an integer number (3588484145400).

Almost surely, 2^{121211020001120} is an apocalyptic number.

121211020001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121211020001120 is an abundant number, since it is smaller than the sum of its proper divisors (223283457957280).

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

121211020001120 is a wasteful number, since it uses less digits than its factorization.

121211020001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696006620 (or 5696006612 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121211020001120 its reverse (21100020112121), we get a palindrome (142311040113241).

The spelling of 121211020001120 in words is "one hundred twenty-one trillion, two hundred eleven billion, twenty million, one thousand, one hundred twenty".