100212212001220 has 48 divisors (see below), whose sum is σ = 230730721200000. Its totient is φ = 36257684728320.

The previous prime is 100212212001211. The next prime is 100212212001259. The reversal of 100212212001220 is 22100212212001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100212212001194 and 100212212001203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144453845 + ... + 1144541404.

It is an arithmetic number, because the mean of its divisors is an integer number (4806890025000).

Almost surely, 2^{100212212001220} is an apocalyptic number.

100212212001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100212212001220 is an abundant number, since it is smaller than the sum of its proper divisors (130518509198780).

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

100212212001220 is a wasteful number, since it uses less digits than its factorization.

100212212001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288995468 (or 2288995466 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100212212001220 its reverse (22100212212001), we get a palindrome (122312424213221).

The spelling of 100212212001220 in words is "one hundred trillion, two hundred twelve billion, two hundred twelve million, one thousand, two hundred twenty".