1022120402255 has 24 divisors (see below), whose sum is σ = 1301729324400. Its totient is φ = 770331722112.

The previous prime is 1022120402221. The next prime is 1022120402257. The reversal of 1022120402255 is 5522040212201.

It is not a de Polignac number, because 1022120402255 - 2¹⁰ = 1022120401231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022120402257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1258670 + ... + 1904859.

It is an arithmetic number, because the mean of its divisors is an integer number (54238721850).

Almost surely, 2^{1022120402255} is an apocalyptic number.

1022120402255 is a deficient number, since it is larger than the sum of its proper divisors (279608922145).

1022120402255 is a wasteful number, since it uses less digits than its factorization.

1022120402255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163751 (or 3163732 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 1022120402255 its reverse (5522040212201), we get a palindrome (6544160614456).

The spelling of 1022120402255 in words is "one trillion, twenty-two billion, one hundred twenty million, four hundred two thousand, two hundred fifty-five".