2021221130212 has 12 divisors (see below), whose sum is σ = 3539902535680. Its totient is φ = 1009820405736.

The previous prime is 2021221130197. The next prime is 2021221130221. The reversal of 2021221130212 is 2120311221202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021221130212.

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, 197534088 + ... + 197544319.

Almost surely, 2^{2021221130212} is an apocalyptic number.

It is an amenable number.

2021221130212 is a deficient number, since it is larger than the sum of its proper divisors (1518681405468).

2021221130212 is a wasteful number, since it uses less digits than its factorization.

2021221130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395079690 (or 395079688 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2021221130212 its reverse (2120311221202), we get a palindrome (4141532351414).

The spelling of 2021221130212 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred thirty thousand, two hundred twelve".