1020122435155 has 16 divisors (see below), whose sum is σ = 1266672218400. Its totient is φ = 787761676800.

The previous prime is 1020122435141. The next prime is 1020122435179. The reversal of 1020122435155 is 5515342210201.

It is a de Polignac number, because none of the positive numbers 2^k-1020122435155 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280950 + ... + 1455739.

It is an arithmetic number, because the mean of its divisors is an integer number (79167013650).

Almost surely, 2^{1020122435155} is an apocalyptic number.

1020122435155 is a deficient number, since it is larger than the sum of its proper divisors (246549783245).

1020122435155 is a wasteful number, since it uses less digits than its factorization.

1020122435155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740774.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 1020122435155 its reverse (5515342210201), we get a palindrome (6535464645356).

The spelling of 1020122435155 in words is "one trillion, twenty billion, one hundred twenty-two million, four hundred thirty-five thousand, one hundred fifty-five".