101212122011 has 16 divisors (see below), whose sum is σ = 135893200128. Its totient is φ = 72799927200.

The previous prime is 101212121977. The next prime is 101212122041. The reversal of 101212122011 is 110221212101.

It is not a de Polignac number, because 101212122011 - 2⁶ = 101212121947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101212122041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50554505 + ... + 50556506.

It is an arithmetic number, because the mean of its divisors is an integer number (8493325008).

Almost surely, 2^101212122011 is an apocalyptic number.

101212122011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101212122011 is a deficient number, since it is larger than the sum of its proper divisors (34681078117).

101212122011 is a wasteful number, since it uses less digits than its factorization.

101212122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101111042.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101212122011 its reverse (110221212101), we get a palindrome (211433334112).

The spelling of 101212122011 in words is "one hundred one billion, two hundred twelve million, one hundred twenty-two thousand, eleven".