210100100001012 has 72 divisors (see below), whose sum is σ = 572009685461760. Its totient is φ = 64638213261120.

The previous prime is 210100100000963. The next prime is 210100100001013. The reversal of 210100100001012 is 210100001001012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210100100000985 and 210100100001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210100100001013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23878312 + ... + 31470207.

Almost surely, 2^{210100100001012} is an apocalyptic number.

It is an amenable number.

210100100001012 is an abundant number, since it is smaller than the sum of its proper divisors (361909585460748).

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

210100100001012 is a wasteful number, since it uses less digits than its factorization.

210100100001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55356653 (or 55356648 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210100100001012 its reverse (210100001001012), we get a palindrome (420200101002024).

The spelling of 210100100001012 in words is "two hundred ten trillion, one hundred billion, one hundred million, one thousand, twelve".