100211981788 has 12 divisors (see below), whose sum is σ = 175931260960. Its totient is φ = 49945907232.

The previous prime is 100211981783. The next prime is 100211981797. The reversal of 100211981788 is 887189112001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100211981783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40019508 + ... + 40022011.

Almost surely, 2^100211981788 is an apocalyptic number.

It is an amenable number.

100211981788 is a deficient number, since it is larger than the sum of its proper divisors (75719279172).

100211981788 is a wasteful number, since it uses less digits than its factorization.

100211981788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80041836 (or 80041834 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 46.

The spelling of 100211981788 in words is "one hundred billion, two hundred eleven million, nine hundred eighty-one thousand, seven hundred eighty-eight".