20121102222011 has 16 divisors (see below), whose sum is σ = 23042451683328. Its totient is φ = 17211514975200.

The previous prime is 20121102221989. The next prime is 20121102222017. The reversal of 20121102222011 is 11022220112102.

It is not a de Polignac number, because 20121102222011 - 2¹⁴ = 20121102205627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20121102222017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5294621 + ... + 8262881.

It is an arithmetic number, because the mean of its divisors is an integer number (1440153230208).

Almost surely, 2^{20121102222011} is an apocalyptic number.

20121102222011 is a deficient number, since it is larger than the sum of its proper divisors (2921349461317).

20121102222011 is a wasteful number, since it uses less digits than its factorization.

20121102222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2970242.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20121102222011 its reverse (11022220112102), we get a palindrome (31143322334113).

The spelling of 20121102222011 in words is "twenty trillion, one hundred twenty-one billion, one hundred two million, two hundred twenty-two thousand, eleven".