1211223111032 has 64 divisors (see below), whose sum is σ = 2640843324000. Its totient is φ = 514692567040.

The previous prime is 1211223111031. The next prime is 1211223111047. The reversal of 1211223111032 is 2301113221121.

It is a super-2 number, since 2×1211223111032² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211223110995 and 1211223111013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211223111031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2494013 + ... + 2939820.

Almost surely, 2^{1211223111032} is an apocalyptic number.

It is an amenable number.

1211223111032 is an abundant number, since it is smaller than the sum of its proper divisors (1429620212968).

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

1211223111032 is a wasteful number, since it uses less digits than its factorization.

1211223111032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434016 (or 5434012 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1211223111032 its reverse (2301113221121), we get a palindrome (3512336332153).

The spelling of 1211223111032 in words is "one trillion, two hundred eleven billion, two hundred twenty-three million, one hundred eleven thousand, thirty-two".