100556216221100 has 36 divisors (see below), whose sum is σ = 218210113544304. Its totient is φ = 40221910572480.

The previous prime is 100556216221079. The next prime is 100556216221121. The reversal of 100556216221100 is 1122612655001.

It is an interprime number because it is at equal distance from previous prime (100556216221079) and next prime (100556216221121).

It is a super-2 number, since 2×100556216221100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145559 + ... + 14182158.

Almost surely, 2^{100556216221100} is an apocalyptic number.

100556216221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100556216221100 is an abundant number, since it is smaller than the sum of its proper divisors (117653897323204).

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

100556216221100 is a wasteful number, since it uses less digits than its factorization.

100556216221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14397914 (or 14397907 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 100556216221100 its reverse (1122612655001), we get a palindrome (101678828876101).

The spelling of 100556216221100 in words is "one hundred trillion, five hundred fifty-six billion, two hundred sixteen million, two hundred twenty-one thousand, one hundred".