13555420442212 has 48 divisors (see below), whose sum is σ = 26048199760128. Its totient is φ = 6121273442720.

The previous prime is 13555420442183. The next prime is 13555420442279. The reversal of 13555420442212 is 21224402455531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3211323 + ... + 6117469.

It is an arithmetic number, because the mean of its divisors is an integer number (542670828336).

Almost surely, 2^{13555420442212} is an apocalyptic number.

It is an amenable number.

13555420442212 is a deficient number, since it is larger than the sum of its proper divisors (12492779317916).

13555420442212 is a wasteful number, since it uses less digits than its factorization.

13555420442212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906856 (or 2906854 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 13555420442212 its reverse (21224402455531), we get a palindrome (34779822897743).

The spelling of 13555420442212 in words is "thirteen trillion, five hundred fifty-five billion, four hundred twenty million, four hundred forty-two thousand, two hundred twelve".