20102222231 has 16 divisors (see below), whose sum is σ = 24825670464. Its totient is φ = 15850750464.

The previous prime is 20102222209. The next prime is 20102222251. The reversal of 20102222231 is 13222220102.

It is a cyclic number.

It is not a de Polignac number, because 20102222231 - 2¹⁴ = 20102205847 is a prime.

It is a super-2 number, since 2×20102222231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102222201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 350306 + ... + 403631.

It is an arithmetic number, because the mean of its divisors is an integer number (1551604404).

Almost surely, 2^20102222231 is an apocalyptic number.

20102222231 is a deficient number, since it is larger than the sum of its proper divisors (4723448233).

20102222231 is a wasteful number, since it uses less digits than its factorization.

20102222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754250.

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

Adding to 20102222231 its reverse (13222220102), we get a palindrome (33324442333).

The spelling of 20102222231 in words is "twenty billion, one hundred two million, two hundred twenty-two thousand, two hundred thirty-one".