981202022122111 has 8 divisors (see below), whose sum is σ = 1038920179993920. Its totient is φ = 923483907790848.

The previous prime is 981202022122093. The next prime is 981202022122181. The reversal of 981202022122111 is 111221220202189.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 981202022122111 - 2⁷ = 981202022121983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981202022122181) 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, 43185130 + ... + 61865656.

It is an arithmetic number, because the mean of its divisors is an integer number (129865022499240).

Almost surely, 2^{981202022122111} is an apocalyptic number.

981202022122111 is a deficient number, since it is larger than the sum of its proper divisors (57718157871809).

981202022122111 is a wasteful number, since it uses less digits than its factorization.

981202022122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21770273.

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 981202022122111 in words is "nine hundred eighty-one trillion, two hundred two billion, twenty-two million, one hundred twenty-two thousand, one hundred eleven".