20212222031 has 8 divisors (see below), whose sum is σ = 20501977104. Its totient is φ = 19924128000.

The previous prime is 20212222007. The next prime is 20212222033. The reversal of 20212222031 is 13022221202.

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 20212222031 - 2²² = 20208027727 is a prime.

It is a super-2 number, since 2×20212222031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212222033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390740 + ... + 439433.

It is an arithmetic number, because the mean of its divisors is an integer number (2562747138).

Almost surely, 2^20212222031 is an apocalyptic number.

20212222031 is a deficient number, since it is larger than the sum of its proper divisors (289755073).

20212222031 is an equidigital number, since it uses as much as digits as its factorization.

20212222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830521.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20212222031 its reverse (13022221202), we get a palindrome (33234443233).

The spelling of 20212222031 in words is "twenty billion, two hundred twelve million, two hundred twenty-two thousand, thirty-one".