981121222102 has 64 divisors (see below), whose sum is σ = 1796860800000. Its totient is φ = 392415528960.

The previous prime is 981121222079. The next prime is 981121222153. The reversal of 981121222102 is 201222121189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23567818 + ... + 23609410.

It is an arithmetic number, because the mean of its divisors is an integer number (28075950000).

Almost surely, 2^981121222102 is an apocalyptic number.

981121222102 is a deficient number, since it is larger than the sum of its proper divisors (815739577898).

981121222102 is a wasteful number, since it uses less digits than its factorization.

981121222102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42941.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 981121222102 in words is "nine hundred eighty-one billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred two".