10101220011 has 12 divisors (see below), whose sum is σ = 14634735960. Its totient is φ = 6713799840.

The previous prime is 10101220007. The next prime is 10101220013. The reversal of 10101220011 is 11002210101.

It is a happy number.

It is not a de Polignac number, because 10101220011 - 2² = 10101220007 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 = 10101219975 and 10101220002.

It is not an unprimeable number, because it can be changed into a prime (10101220013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1692426 + ... + 1698383.

It is an arithmetic number, because the mean of its divisors is an integer number (1219561330).

Almost surely, 2^10101220011 is an apocalyptic number.

10101220011 is a deficient number, since it is larger than the sum of its proper divisors (4533515949).

10101220011 is a wasteful number, since it uses less digits than its factorization.

10101220011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391146 (or 3391143 counting only the distinct ones).

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

Adding to 10101220011 its reverse (11002210101), we get a palindrome (21103430112).

The spelling of 10101220011 in words is "ten billion, one hundred one million, two hundred twenty thousand, eleven".