20212011222311 has 16 divisors (see below), whose sum is σ = 20860408977408. Its totient is φ = 19571567889600.

The previous prime is 20212011222281. The next prime is 20212011222323. The reversal of 20212011222311 is 11322211021202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212011222311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011222371) 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, 536171 + ... + 6380556.

It is an arithmetic number, because the mean of its divisors is an integer number (1303775561088).

Almost surely, 2^{20212011222311} is an apocalyptic number.

20212011222311 is a deficient number, since it is larger than the sum of its proper divisors (648397755097).

20212011222311 is a wasteful number, since it uses less digits than its factorization.

20212011222311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6917302.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20212011222311 its reverse (11322211021202), we get a palindrome (31534222243513).

The spelling of 20212011222311 in words is "twenty trillion, two hundred twelve billion, eleven million, two hundred twenty-two thousand, three hundred eleven".