11201001221012 has 24 divisors (see below), whose sum is σ = 20123400932712. Its totient is φ = 5452050713600.

The previous prime is 11201001220999. The next prime is 11201001221017. The reversal of 11201001221012 is 21012210010211.

It can be written as a sum of positive squares in 4 ways, for example, as 288192890896 + 10912808330116 = 536836^2 + 3303454^2 .

It is a super-2 number, since 2×11201001221012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201001221017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74001173 + ... + 74152380.

It is an arithmetic number, because the mean of its divisors is an integer number (838475038863).

Almost surely, 2^{11201001221012} is an apocalyptic number.

It is an amenable number.

11201001221012 is a deficient number, since it is larger than the sum of its proper divisors (8922399711700).

11201001221012 is a wasteful number, since it uses less digits than its factorization.

11201001221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148154059 (or 148154057 counting only the distinct ones).

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

Adding to 11201001221012 its reverse (21012210010211), we get a palindrome (32213211231223).

The spelling of 11201001221012 in words is "eleven trillion, two hundred one billion, one million, two hundred twenty-one thousand, twelve".