100212001011 has 8 divisors (see below), whose sum is σ = 148462223760. Its totient is φ = 66808000656.

The previous prime is 100212001009. The next prime is 100212001031. The reversal of 100212001011 is 110100212001.

It is a happy number.

It is not a de Polignac number, because 100212001011 - 2¹ = 100212001009 is a prime.

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 = 100212000984 and 100212001002.

It is not an unprimeable number, because it can be changed into a prime (100212001031) 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, 1855777770 + ... + 1855777823.

It is an arithmetic number, because the mean of its divisors is an integer number (18557777970).

Almost surely, 2^100212001011 is an apocalyptic number.

100212001011 is a deficient number, since it is larger than the sum of its proper divisors (48250222749).

100212001011 is an equidigital number, since it uses as much as digits as its factorization.

100212001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711555602 (or 3711555596 counting only the distinct ones).

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

Adding to 100212001011 its reverse (110100212001), we get a palindrome (210312213012).

The spelling of 100212001011 in words is "one hundred billion, two hundred twelve million, one thousand, eleven".