20122221107 has 2 divisors, whose sum is σ = 20122221108. Its totient is φ = 20122221106.

The previous prime is 20122221101. The next prime is 20122221143. The reversal of 20122221107 is 70112222102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20122221107 - 2⁸ = 20122220851 is a prime.

It is not a weakly prime, because it can be changed into another prime (20122221101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061110553 + 10061110554.

It is an arithmetic number, because the mean of its divisors is an integer number (10061110554).

Almost surely, 2^20122221107 is an apocalyptic number.

20122221107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122221107 is an equidigital number, since it uses as much as digits as its factorization.

20122221107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 20122221107 its reverse (70112222102), we get a palindrome (90234443209).

The spelling of 20122221107 in words is "twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred seven".