101122011 has 6 divisors (see below), whose sum is σ = 146065140. Its totient is φ = 67414668.

The previous prime is 101122003. The next prime is 101122013. The reversal of 101122011 is 110221101.

It is a happy number.

It is not a de Polignac number, because 101122011 - 2³ = 101122003 is a prime.

It is a super-2 number, since 2×101122011² = 20451322217368242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11235779 = 101122011 / (1 + 0 + 1 + 1 + 2 + 2 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 101121984 and 101122002.

It is not an unprimeable number, because it can be changed into a prime (101122013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5617881 + ... + 5617898.

It is an arithmetic number, because the mean of its divisors is an integer number (24344190).

Almost surely, 2^101122011 is an apocalyptic number.

101122011 is a deficient number, since it is larger than the sum of its proper divisors (44943129).

101122011 is a wasteful number, since it uses less digits than its factorization.

101122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11235785 (or 11235782 counting only the distinct ones).

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

The square root of 101122011 is about 10055.9440630902. The cubic root of 101122011 is about 465.8884021788. Note that the first 3 decimals are identical.

Adding to 101122011 its reverse (110221101), we get a palindrome (211343112).

The spelling of 101122011 in words is "one hundred one million, one hundred twenty-two thousand, eleven".