11012210001 has 24 divisors (see below), whose sum is σ = 17528486976. Its totient is φ = 6619142880.

The previous prime is 11012209987. The next prime is 11012210021. The reversal of 11012210001 is 10001221011.

It is a happy number.

It is not a de Polignac number, because 11012210001 - 2⁹ = 11012209489 is a prime.

It is a super-2 number, since 2×11012210001² (a number of 21 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (11012210021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1089405 + ... + 1099466.

It is an arithmetic number, because the mean of its divisors is an integer number (730353624).

Almost surely, 2^11012210001 is an apocalyptic number.

It is an amenable number.

11012210001 is a deficient number, since it is larger than the sum of its proper divisors (6516276975).

11012210001 is a wasteful number, since it uses less digits than its factorization.

11012210001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188933 (or 2188930 counting only the distinct ones).

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

Adding to 11012210001 its reverse (10001221011), we get a palindrome (21013431012).

The spelling of 11012210001 in words is "eleven billion, twelve million, two hundred ten thousand, one".