121030002120 has 64 divisors (see below), whose sum is σ = 363245555520. Its totient is φ = 32260840704.

The previous prime is 121030002103. The next prime is 121030002131. The reversal of 121030002120 is 21200030121.

It is a super-2 number, since 2×121030002120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 121030002096 and 121030002105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66774 + ... + 496506.

It is an arithmetic number, because the mean of its divisors is an integer number (5675711805).

Almost surely, 2^121030002120 is an apocalyptic number.

121030002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121030002120 is an abundant number, since it is smaller than the sum of its proper divisors (242215553400).

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

121030002120 is a wasteful number, since it uses less digits than its factorization.

121030002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432094 (or 432090 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 121030002120 its reverse (21200030121), we get a palindrome (142230032241).

The spelling of 121030002120 in words is "one hundred twenty-one billion, thirty million, two thousand, one hundred twenty".