20212031122 has 4 divisors (see below), whose sum is σ = 30318046686. Its totient is φ = 10106015560.

The previous prime is 20212031111. The next prime is 20212031137. The reversal of 20212031122 is 22113021202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22113021202 = 2 ⋅11056510601.

It can be written as a sum of positive squares in only one way, i.e., 20212024561 + 6561 = 142169^2 + 81^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20212031096 and 20212031105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053007779 + ... + 5053007782.

Almost surely, 2^20212031122 is an apocalyptic number.

20212031122 is a deficient number, since it is larger than the sum of its proper divisors (10106015564).

20212031122 is a wasteful number, since it uses less digits than its factorization.

20212031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10106015563.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20212031122 its reverse (22113021202), we get a palindrome (42325052324).

The spelling of 20212031122 in words is "twenty billion, two hundred twelve million, thirty-one thousand, one hundred twenty-two".