1021222022212 has 24 divisors (see below), whose sum is σ = 2042465834304. Its totient is φ = 437661911712.

The previous prime is 1021222022209. The next prime is 1021222022213. The reversal of 1021222022212 is 2122202221201.

1021222022212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1021222022212.

It is not an unprimeable number, because it can be changed into a prime (1021222022213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4292118 + ... + 4523794.

It is an arithmetic number, because the mean of its divisors is an integer number (85102743096).

Almost surely, 2^{1021222022212} is an apocalyptic number.

It is an amenable number.

1021222022212 is an abundant number, since it is smaller than the sum of its proper divisors (1021243812092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021222022212 is a wasteful number, since it uses less digits than its factorization.

1021222022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389115 (or 389113 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1021222022212 its reverse (2122202221201), we get a palindrome (3143424243413).

The spelling of 1021222022212 in words is "one trillion, twenty-one billion, two hundred twenty-two million, twenty-two thousand, two hundred twelve".