100211420520 has 96 divisors (see below), whose sum is σ = 325889197920. Its totient is φ = 26706464640.

The previous prime is 100211420503. The next prime is 100211420563. The reversal of 100211420520 is 25024112001.

100211420520 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 1 + 142 + 0 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100211420493 and 100211420502.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 500175 + ... + 671265.

It is an arithmetic number, because the mean of its divisors is an integer number (3394679145).

Almost surely, 2^100211420520 is an apocalyptic number.

100211420520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100211420520 is an abundant number, since it is smaller than the sum of its proper divisors (225677777400).

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

100211420520 is a wasteful number, since it uses less digits than its factorization.

100211420520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172735 (or 172728 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 100211420520 its reverse (25024112001), we get a palindrome (125235532521).

The spelling of 100211420520 in words is "one hundred billion, two hundred eleven million, four hundred twenty thousand, five hundred twenty".