20122122194 has 16 divisors (see below), whose sum is σ = 31965582528. Its totient is φ = 9479986032.

The previous prime is 20122122193. The next prime is 20122122211. The reversal of 20122122194 is 49122122102.

It is not an unprimeable number, because it can be changed into a prime (20122122193) 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, 3261377 + ... + 3267540.

It is an arithmetic number, because the mean of its divisors is an integer number (1997848908).

Almost surely, 2^20122122194 is an apocalyptic number.

20122122194 is a deficient number, since it is larger than the sum of its proper divisors (11843460334).

20122122194 is a wasteful number, since it uses less digits than its factorization.

20122122194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529009.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 20122122194 its reverse (49122122102), we get a palindrome (69244244296).

The spelling of 20122122194 in words is "twenty billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred ninety-four".