1255120102201 has 8 divisors (see below), whose sum is σ = 1434433271040. Its totient is φ = 1075809507648.

The previous prime is 1255120102183. The next prime is 1255120102211. The reversal of 1255120102201 is 1022010215521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255120102201 - 2¹⁵ = 1255120069433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255120102211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548385 + ... + 1676593.

It is an arithmetic number, because the mean of its divisors is an integer number (179304158880).

Almost surely, 2^{1255120102201} is an apocalyptic number.

It is an amenable number.

1255120102201 is a deficient number, since it is larger than the sum of its proper divisors (179313168839).

1255120102201 is a wasteful number, since it uses less digits than its factorization.

1255120102201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287143.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 1255120102201 its reverse (1022010215521), we get a palindrome (2277130317722).

The spelling of 1255120102201 in words is "one trillion, two hundred fifty-five billion, one hundred twenty million, one hundred two thousand, two hundred one".