2255021210001 has 16 divisors (see below), whose sum is σ = 3554713238400. Its totient is φ = 1244149632768.

The previous prime is 2255021209999. The next prime is 2255021210009. The reversal of 2255021210001 is 1000121205522.

It is not a de Polignac number, because 2255021210001 - 2¹ = 2255021209999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2255021210001.

It is not an unprimeable number, because it can be changed into a prime (2255021210009) 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, 1851412536 + ... + 1851413753.

It is an arithmetic number, because the mean of its divisors is an integer number (222169577400).

Almost surely, 2^{2255021210001} is an apocalyptic number.

2255021210001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2255021210001 is a deficient number, since it is larger than the sum of its proper divisors (1299692028399).

2255021210001 is a wasteful number, since it uses less digits than its factorization.

2255021210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702826328.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 2255021210001 its reverse (1000121205522), we get a palindrome (3255142415523).

The spelling of 2255021210001 in words is "two trillion, two hundred fifty-five billion, twenty-one million, two hundred ten thousand, one".