11021023212 has 48 divisors (see below), whose sum is σ = 26052633600. Its totient is φ = 3625754112.

The previous prime is 11021023199. The next prime is 11021023253. The reversal of 11021023212 is 21232012011.

It is a junction number, because it is equal to n+sod(n) for n = 11021023191 and 11021023200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414289 + ... + 440087.

It is an arithmetic number, because the mean of its divisors is an integer number (542763200).

Almost surely, 2^11021023212 is an apocalyptic number.

11021023212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11021023212 is an abundant number, since it is smaller than the sum of its proper divisors (15031610388).

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

11021023212 is a wasteful number, since it uses less digits than its factorization.

11021023212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270 (or 26268 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11021023212 its reverse (21232012011), we get a palindrome (32253035223).

The spelling of 11021023212 in words is "eleven billion, twenty-one million, twenty-three thousand, two hundred twelve".