11001222021012 has 48 divisors (see below), whose sum is σ = 25734274547520. Its totient is φ = 3657834254592.

The previous prime is 11001222020981. The next prime is 11001222021043. The reversal of 11001222021012 is 21012022210011.

It is an interprime number because it is at equal distance from previous prime (11001222020981) and next prime (11001222021043).

It is a junction number, because it is equal to n+sod(n) for n = 11001222020982 and 11001222021000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7186608 + ... + 8581944.

It is an arithmetic number, because the mean of its divisors is an integer number (536130719740).

Almost surely, 2^{11001222021012} is an apocalyptic number.

11001222021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11001222021012 is an abundant number, since it is smaller than the sum of its proper divisors (14733052526508).

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

11001222021012 is a wasteful number, since it uses less digits than its factorization.

11001222021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397000 (or 1396998 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11001222021012 its reverse (21012022210011), we get a palindrome (32013244231023).

The spelling of 11001222021012 in words is "eleven trillion, one billion, two hundred twenty-two million, twenty-one thousand, twelve".