11321221021012 has 24 divisors (see below), whose sum is σ = 23834149519040. Its totient is φ = 4596585978240.

The previous prime is 11321221021003. The next prime is 11321221021063. The reversal of 11321221021012 is 21012012212311.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10640244789 + ... + 10640245852.

Almost surely, 2^{11321221021012} is an apocalyptic number.

It is an amenable number.

11321221021012 is an abundant number, since it is smaller than the sum of its proper divisors (12512928498028).

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

11321221021012 is a wasteful number, since it uses less digits than its factorization.

11321221021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21280490671 (or 21280490669 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11321221021012 its reverse (21012012212311), we get a palindrome (32333233233323).

The spelling of 11321221021012 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, twenty-one thousand, twelve".