1055220243135 has 8 divisors (see below), whose sum is σ = 1688352389040. Its totient is φ = 562784129664.

The previous prime is 1055220243107. The next prime is 1055220243137. The reversal of 1055220243135 is 5313420225501.

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

It is not a de Polignac number, because 1055220243135 - 2⁹ = 1055220242623 is a prime.

It is a super-2 number, since 2×1055220243135² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055220243096 and 1055220243105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055220243137) 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, 35174008090 + ... + 35174008119.

It is an arithmetic number, because the mean of its divisors is an integer number (211044048630).

Almost surely, 2^{1055220243135} is an apocalyptic number.

1055220243135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055220243135 is a deficient number, since it is larger than the sum of its proper divisors (633132145905).

1055220243135 is an equidigital number, since it uses as much as digits as its factorization.

1055220243135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70348016217.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 1055220243135 its reverse (5313420225501), we get a palindrome (6368640468636).

The spelling of 1055220243135 in words is "one trillion, fifty-five billion, two hundred twenty million, two hundred forty-three thousand, one hundred thirty-five".