20012122102211 has 8 divisors (see below), whose sum is σ = 20195820585600. Its totient is φ = 19828425456000.

The previous prime is 20012122102201. The next prime is 20012122102229. The reversal of 20012122102211 is 11220122121002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012122102211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20012122102211.

It is not an unprimeable number, because it can be changed into a prime (20012122102201) 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, 31733870 + ... + 32358348.

It is an arithmetic number, because the mean of its divisors is an integer number (2524477573200).

Almost surely, 2^{20012122102211} is an apocalyptic number.

20012122102211 is a deficient number, since it is larger than the sum of its proper divisors (183698483389).

20012122102211 is a wasteful number, since it uses less digits than its factorization.

20012122102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918589.

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

Adding to 20012122102211 its reverse (11220122121002), we get a palindrome (31232244223213).

The spelling of 20012122102211 in words is "twenty trillion, twelve billion, one hundred twenty-two million, one hundred two thousand, two hundred eleven".