20121132122 has 32 divisors (see below), whose sum is σ = 37155038592. Its totient is φ = 7958222784.

The previous prime is 20121132121. The next prime is 20121132127. The reversal of 20121132122 is 22123112102.

It is a self number, because there is not a number n which added to its sum of digits gives 20121132122.

It is not an unprimeable number, because it can be changed into a prime (20121132121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1051028 + ... + 1070000.

It is an arithmetic number, because the mean of its divisors is an integer number (1161094956).

Almost surely, 2^20121132122 is an apocalyptic number.

20121132122 is a deficient number, since it is larger than the sum of its proper divisors (17033906470).

20121132122 is a wasteful number, since it uses less digits than its factorization.

20121132122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24822.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20121132122 its reverse (22123112102), we get a palindrome (42244244224).

The spelling of 20121132122 in words is "twenty billion, one hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty-two".