12020021012122 has 8 divisors (see below), whose sum is σ = 18063358749972. Its totient is φ = 5998901428800.

The previous prime is 12020021012113. The next prime is 12020021012137. The reversal of 12020021012122 is 22121012002021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11960592811281 + 59428200841 = 3458409^2 + 243779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12020021012096 and 12020021012105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5554537279 + ... + 5554539442.

Almost surely, 2^{12020021012122} is an apocalyptic number.

12020021012122 is a deficient number, since it is larger than the sum of its proper divisors (6043337737850).

12020021012122 is a wasteful number, since it uses less digits than its factorization.

12020021012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11109077264.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12020021012122 its reverse (22121012002021), we get a palindrome (34141033014143).

The spelling of 12020021012122 in words is "twelve trillion, twenty billion, twenty-one million, twelve thousand, one hundred twenty-two".