20212202011211 has 32 divisors (see below), whose sum is σ = 24679414637568. Its totient is φ = 16158393538560.

The previous prime is 20212202011187. The next prime is 20212202011229. The reversal of 20212202011211 is 11211020221202.

It is not a de Polignac number, because 20212202011211 - 2²² = 20212197816907 is a prime.

It is a super-2 number, since 2×20212202011211² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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 20212202011211.

It is not an unprimeable number, because it can be changed into a prime (20212202011271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75047756 + ... + 75316598.

It is an arithmetic number, because the mean of its divisors is an integer number (771231707424).

Almost surely, 2^{20212202011211} is an apocalyptic number.

20212202011211 is a deficient number, since it is larger than the sum of its proper divisors (4467212626357).

20212202011211 is a wasteful number, since it uses less digits than its factorization.

20212202011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274571.

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

Adding to 20212202011211 its reverse (11211020221202), we get a palindrome (31423222232413).

The spelling of 20212202011211 in words is "twenty trillion, two hundred twelve billion, two hundred two million, eleven thousand, two hundred eleven".