12020021133122 has 4 divisors (see below), whose sum is σ = 18030031699686. Its totient is φ = 6010010566560.

The previous prime is 12020021133119. The next prime is 12020021133137. The reversal of 12020021133122 is 22133112002021.

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., 10698466264201 + 1321554868921 = 3270851^2 + 1149589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12020021133094 and 12020021133103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005005283279 + ... + 3005005283282.

Almost surely, 2^{12020021133122} is an apocalyptic number.

12020021133122 is a deficient number, since it is larger than the sum of its proper divisors (6010010566564).

12020021133122 is an equidigital number, since it uses as much as digits as its factorization.

12020021133122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6010010566563.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12020021133122 its reverse (22133112002021), we get a palindrome (34153133135143).

The spelling of 12020021133122 in words is "twelve trillion, twenty billion, twenty-one million, one hundred thirty-three thousand, one hundred twenty-two".