100212111111020 has 48 divisors (see below), whose sum is σ = 210496504680000. Its totient is φ = 40075117824000.

The previous prime is 100212111111017. The next prime is 100212111111031. The reversal of 100212111111020 is 20111111212001.

It is a junction number, because it is equal to n+sod(n) for n = 100212111110986 and 100212111111004.

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, 1687071281 + ... + 1687130679.

It is an arithmetic number, because the mean of its divisors is an integer number (4385343847500).

Almost surely, 2^{100212111111020} is an apocalyptic number.

100212111111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100212111111020 is an abundant number, since it is smaller than the sum of its proper divisors (110284393568980).

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

100212111111020 is a wasteful number, since it uses less digits than its factorization.

100212111111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78458 (or 78456 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 100212111111020 its reverse (20111111212001), we get a palindrome (120323222323021).

The spelling of 100212111111020 in words is "one hundred trillion, two hundred twelve billion, one hundred eleven million, one hundred eleven thousand, twenty".