1011222021212 has 24 divisors (see below), whose sum is σ = 1915742422272. Its totient is φ = 464274302400.

The previous prime is 1011222021211. The next prime is 1011222021223. The reversal of 1011222021212 is 2121202221101.

1011222021212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011222021211) 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, 50897339 + ... + 50917202.

It is an arithmetic number, because the mean of its divisors is an integer number (79822600928).

Almost surely, 2^{1011222021212} is an apocalyptic number.

It is an amenable number.

1011222021212 is a deficient number, since it is larger than the sum of its proper divisors (904520401060).

1011222021212 is a wasteful number, since it uses less digits than its factorization.

1011222021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101814749 (or 101814747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1011222021212 its reverse (2121202221101), we get a palindrome (3132424242313).

The spelling of 1011222021212 in words is "one trillion, eleven billion, two hundred twenty-two million, twenty-one thousand, two hundred twelve".