20212222131311 has 8 divisors (see below), whose sum is σ = 23099721350784. Its totient is φ = 17324732640600.

The previous prime is 20212222131259. The next prime is 20212222131349. The reversal of 20212222131311 is 11313122221202.

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

It is not a de Polignac number, because 20212222131311 - 2⁶ = 20212222131247 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 (20212222131911) 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, 2758196 + ... + 6930518.

It is an arithmetic number, because the mean of its divisors is an integer number (2887465168848).

Almost surely, 2^{20212222131311} is an apocalyptic number.

20212222131311 is a deficient number, since it is larger than the sum of its proper divisors (2887499219473).

20212222131311 is an equidigital number, since it uses as much as digits as its factorization.

20212222131311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4864381.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20212222131311 its reverse (11313122221202), we get a palindrome (31525344352513).

The spelling of 20212222131311 in words is "twenty trillion, two hundred twelve billion, two hundred twenty-two million, one hundred thirty-one thousand, three hundred eleven".