13212312211020 has 48 divisors (see below), whose sum is σ = 39840202977120. Its totient is φ = 3252261467136.

The previous prime is 13212312211013. The next prime is 13212312211067. The reversal of 13212312211020 is 2011221321231.

It is a super-2 number, since 2×13212312211020² (a number of 27 digits) contains 22 as substring.

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, 8469430125 + ... + 8469431684.

It is an arithmetic number, because the mean of its divisors is an integer number (830004228690).

Almost surely, 2^{13212312211020} is an apocalyptic number.

13212312211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13212312211020 is an abundant number, since it is smaller than the sum of its proper divisors (26627890766100).

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

13212312211020 is a wasteful number, since it uses less digits than its factorization.

13212312211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16938861834 (or 16938861832 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13212312211020 its reverse (2011221321231), we get a palindrome (15223533532251).

The spelling of 13212312211020 in words is "thirteen trillion, two hundred twelve billion, three hundred twelve million, two hundred eleven thousand, twenty".