20102211021211 has 8 divisors (see below), whose sum is σ = 21973282539264. Its totient is φ = 18238405801320.

The previous prime is 20102211021197. The next prime is 20102211021227. The reversal of 20102211021211 is 11212011220102.

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

It is a cyclic number.

It is not a de Polignac number, because 20102211021211 - 2¹⁹ = 20102210496923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102281021211) 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, 1816568751 + ... + 1816579816.

It is an arithmetic number, because the mean of its divisors is an integer number (2746660317408).

Almost surely, 2^{20102211021211} is an apocalyptic number.

20102211021211 is a deficient number, since it is larger than the sum of its proper divisors (1871071518053).

20102211021211 is a wasteful number, since it uses less digits than its factorization.

20102211021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3633149081.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20102211021211 its reverse (11212011220102), we get a palindrome (31314222241313).

The spelling of 20102211021211 in words is "twenty trillion, one hundred two billion, two hundred eleven million, twenty-one thousand, two hundred eleven".