20212002122 has 16 divisors (see below), whose sum is σ = 32792744040. Its totient is φ = 9287877312.

The previous prime is 20212002079. The next prime is 20212002131. The reversal of 20212002122 is 22120021202.

It can be written as a sum of positive squares in 4 ways, for example, as 18547443721 + 1664558401 = 136189^2 + 40799^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20212002097 and 20212002106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1691393 + ... + 1703300.

Almost surely, 2^20212002122 is an apocalyptic number.

20212002122 is a deficient number, since it is larger than the sum of its proper divisors (12580741918).

20212002122 is a wasteful number, since it uses less digits than its factorization.

20212002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394937.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20212002122 its reverse (22120021202), we get a palindrome (42332023324).

The spelling of 20212002122 in words is "twenty billion, two hundred twelve million, two thousand, one hundred twenty-two".