2231212013020 has 24 divisors (see below), whose sum is σ = 4686441173568. Its totient is φ = 892314148800.

The previous prime is 2231212012993. The next prime is 2231212013029. The reversal of 2231212013020 is 203102121322.

It is a super-3 number, since 3×2231212013020³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231212013029) 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, 10558791 + ... + 10768030.

It is an arithmetic number, because the mean of its divisors is an integer number (195268382232).

Almost surely, 2^{2231212013020} is an apocalyptic number.

2231212013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231212013020 is an abundant number, since it is smaller than the sum of its proper divisors (2455229160548).

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

2231212013020 is a wasteful number, since it uses less digits than its factorization.

2231212013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21332061 (or 21332059 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2231212013020 its reverse (203102121322), we get a palindrome (2434314134342).

The spelling of 2231212013020 in words is "two trillion, two hundred thirty-one billion, two hundred twelve million, thirteen thousand, twenty".