121002001122020 has 24 divisors (see below), whose sum is σ = 254417524464768. Its totient is φ = 48341120047200.

The previous prime is 121002001121987. The next prime is 121002001122053. The reversal of 121002001122020 is 20221100200121.

It is an interprime number because it is at equal distance from previous prime (121002001121987) and next prime (121002001122053).

It is a junction number, because it is equal to n+sod(n) for n = 121002001121986 and 121002001122004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3730008476 + ... + 3730040915.

It is an arithmetic number, because the mean of its divisors is an integer number (10600730186032).

Almost surely, 2^{121002001122020} is an apocalyptic number.

121002001122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002001122020 is an abundant number, since it is smaller than the sum of its proper divisors (133415523342748).

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

121002001122020 is a wasteful number, since it uses less digits than its factorization.

121002001122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460050211 (or 7460050209 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121002001122020 its reverse (20221100200121), we get a palindrome (141223101322141).

The spelling of 121002001122020 in words is "one hundred twenty-one trillion, two billion, one million, one hundred twenty-two thousand, twenty".