100012001211 has 8 divisors (see below), whose sum is σ = 148165927760. Its totient is φ = 66674667456.

The previous prime is 100012001207. The next prime is 100012001231. The reversal of 100012001211 is 112100210001.

It is a happy number.

It is not a de Polignac number, because 100012001211 - 2² = 100012001207 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100012001193 and 100012001202.

It is not an unprimeable number, because it can be changed into a prime (100012001231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1852074070 + ... + 1852074123.

It is an arithmetic number, because the mean of its divisors is an integer number (18520740970).

Almost surely, 2^100012001211 is an apocalyptic number.

100012001211 is a deficient number, since it is larger than the sum of its proper divisors (48153926549).

100012001211 is an equidigital number, since it uses as much as digits as its factorization.

100012001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3704148202 (or 3704148196 counting only the distinct ones).

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

Adding to 100012001211 its reverse (112100210001), we get a palindrome (212112211212).

The spelling of 100012001211 in words is "one hundred billion, twelve million, one thousand, two hundred eleven".