13023212001220 has 24 divisors (see below), whose sum is σ = 27350327421144. Its totient is φ = 5208983425536.

The previous prime is 13023212001203. The next prime is 13023212001257. The reversal of 13023212001220 is 2210021232031.

It can be written as a sum of positive squares in 4 ways, for example, as 13455536004 + 13009756465216 = 115998^2 + 3606904^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18481429 + ... + 19173148.

It is an arithmetic number, because the mean of its divisors is an integer number (1139596975881).

Almost surely, 2^{13023212001220} is an apocalyptic number.

13023212001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023212001220 is an abundant number, since it is smaller than the sum of its proper divisors (14327115419924).

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

13023212001220 is a wasteful number, since it uses less digits than its factorization.

13023212001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37671879 (or 37671877 counting only the distinct ones).

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

Adding to 13023212001220 its reverse (2210021232031), we get a palindrome (15233233233251).

The spelling of 13023212001220 in words is "thirteen trillion, twenty-three billion, two hundred twelve million, one thousand, two hundred twenty".