2231211040212 has 72 divisors (see below), whose sum is σ = 6606702839520. Its totient is φ = 579535333440.

The previous prime is 2231211040169. The next prime is 2231211040243. The reversal of 2231211040212 is 2120401121322.

It is a happy number.

It is a super-3 number, since 3×2231211040212³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172474287 + ... + 172487222.

It is an arithmetic number, because the mean of its divisors is an integer number (91759761660).

Almost surely, 2^{2231211040212} is an apocalyptic number.

2231211040212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2231211040212 is an abundant number, since it is smaller than the sum of its proper divisors (4375491799308).

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

2231211040212 is a wasteful number, since it uses less digits than its factorization.

2231211040212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344961541 (or 344961532 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2231211040212 its reverse (2120401121322), we get a palindrome (4351612161534).

The spelling of 2231211040212 in words is "two trillion, two hundred thirty-one billion, two hundred eleven million, forty thousand, two hundred twelve".