2020121229987 has 48 divisors (see below), whose sum is σ = 3349085987520. Its totient is φ = 1149414506496.

The previous prime is 2020121229983. The next prime is 2020121230007. The reversal of 2020121229987 is 7899221210202.

It is not a de Polignac number, because 2020121229987 - 2² = 2020121229983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2020121229983) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 43903189 + ... + 43949177.

It is an arithmetic number, because the mean of its divisors is an integer number (69772624740).

Almost surely, 2^{2020121229987} is an apocalyptic number.

2020121229987 is a deficient number, since it is larger than the sum of its proper divisors (1328964757533).

2020121229987 is a wasteful number, since it uses less digits than its factorization.

2020121229987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48972 (or 48969 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 2020121229987 in words is "two trillion, twenty billion, one hundred twenty-one million, two hundred twenty-nine thousand, nine hundred eighty-seven".