11012111220201 has 128 divisors (see below), whose sum is σ = 19003824193536. Its totient is φ = 5517863285760.

The previous prime is 11012111220163. The next prime is 11012111220221. The reversal of 11012111220201 is 10202211121011.

It is a happy number.

It is not a de Polignac number, because 11012111220201 - 2¹³ = 11012111212009 is a prime.

It is a super-2 number, since 2×11012111220201² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11012111220221) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 73794075 + ... + 73943151.

It is an arithmetic number, because the mean of its divisors is an integer number (148467376512).

Almost surely, 2^{11012111220201} is an apocalyptic number.

It is an amenable number.

11012111220201 is a deficient number, since it is larger than the sum of its proper divisors (7991712973335).

11012111220201 is a wasteful number, since it uses less digits than its factorization.

11012111220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149311.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11012111220201 its reverse (10202211121011), we get a palindrome (21214322341212).

The spelling of 11012111220201 in words is "eleven trillion, twelve billion, one hundred eleven million, two hundred twenty thousand, two hundred one".