1211022323140 has 48 divisors (see below), whose sum is σ = 2907597353472. Its totient is φ = 415044256896.

The previous prime is 1211022323123. The next prime is 1211022323143. The reversal of 1211022323140 is 413232201121.

It is not an unprimeable number, because it can be changed into a prime (1211022323143) 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, 1344759 + ... + 2056798.

It is an arithmetic number, because the mean of its divisors is an integer number (60574944864).

Almost surely, 2^{1211022323140} is an apocalyptic number.

1211022323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1211022323140 is an abundant number, since it is smaller than the sum of its proper divisors (1696575030332).

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

1211022323140 is a wasteful number, since it uses less digits than its factorization.

1211022323140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404116 (or 3404114 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1211022323140 its reverse (413232201121), we get a palindrome (1624254524261).

The spelling of 1211022323140 in words is "one trillion, two hundred eleven billion, twenty-two million, three hundred twenty-three thousand, one hundred forty".