2121010211982 has 16 divisors (see below), whose sum is σ = 4242917503440. Its totient is φ = 706853890752.

The previous prime is 2121010211977. The next prime is 2121010211987. The reversal of 2121010211982 is 2891120101212.

It is an interprime number because it is at equal distance from previous prime (2121010211977) and next prime (2121010211987).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121010211987) 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, 37347573 + ... + 37404320.

It is an arithmetic number, because the mean of its divisors is an integer number (265182343965).

Almost surely, 2^{2121010211982} is an apocalyptic number.

2121010211982 is an abundant number, since it is smaller than the sum of its proper divisors (2121907291458).

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

2121010211982 is a wasteful number, since it uses less digits than its factorization.

2121010211982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74756627.

The product of its (nonzero) digits is 1152, while the sum is 30.

The spelling of 2121010211982 in words is "two trillion, one hundred twenty-one billion, ten million, two hundred eleven thousand, nine hundred eighty-two".