20102231122 has 4 divisors (see below), whose sum is σ = 30153346686. Its totient is φ = 10051115560.

The previous prime is 20102231119. The next prime is 20102231129. The reversal of 20102231122 is 22113220102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11994849441 + 8107381681 = 109521^2 + 90041^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20102231096 and 20102231105.

It is not an unprimeable number, because it can be changed into a prime (20102231129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025557779 + ... + 5025557782.

Almost surely, 2^20102231122 is an apocalyptic number.

20102231122 is a deficient number, since it is larger than the sum of its proper divisors (10051115564).

20102231122 is a wasteful number, since it uses less digits than its factorization.

20102231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051115563.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20102231122 its reverse (22113220102), we get a palindrome (42215451224).

The spelling of 20102231122 in words is "twenty billion, one hundred two million, two hundred thirty-one thousand, one hundred twenty-two".