981102210212 has 6 divisors (see below), whose sum is σ = 1716928867878. Its totient is φ = 490551105104.

The previous prime is 981102210203. The next prime is 981102210229. The reversal of 981102210212 is 212012201189.

It can be written as a sum of positive squares in only one way, i.e., 547919726656 + 433182483556 = 740216^2 + 658166^2 .

It is a super-3 number, since 3×981102210212³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122637776273 + ... + 122637776280.

It is an arithmetic number, because the mean of its divisors is an integer number (286154811313).

Almost surely, 2^981102210212 is an apocalyptic number.

It is an amenable number.

981102210212 is a deficient number, since it is larger than the sum of its proper divisors (735826657666).

981102210212 is a wasteful number, since it uses less digits than its factorization.

981102210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245275552557 (or 245275552555 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 981102210212 in words is "nine hundred eighty-one billion, one hundred two million, two hundred ten thousand, two hundred twelve".