2021121012112 has 10 divisors (see below), whose sum is σ = 3915921960998. Its totient is φ = 1010560506048.

The previous prime is 2021121012089. The next prime is 2021121012121. The reversal of 2021121012112 is 2112101211202.

It can be written as a sum of positive squares in only one way, i.e., 1933779484816 + 87341527296 = 1390604^2 + 295536^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 126320063257 = 2021121012112 / (2 + 0 + 2 + 1 + 1 + 2 + 1 + 0 + 1 + 2 + 1 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63160031613 + ... + 63160031644.

Almost surely, 2^{2021121012112} is an apocalyptic number.

It is an amenable number.

2021121012112 is a deficient number, since it is larger than the sum of its proper divisors (1894800948886).

2021121012112 is a wasteful number, since it uses less digits than its factorization.

2021121012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126320063265 (or 126320063259 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2021121012112 its reverse (2112101211202), we get a palindrome (4133222223314).

The spelling of 2021121012112 in words is "two trillion, twenty-one billion, one hundred twenty-one million, twelve thousand, one hundred twelve".