1102021105555 has 32 divisors (see below), whose sum is σ = 1444165873920. Its totient is φ = 804061747200.

The previous prime is 1102021105547. The next prime is 1102021105571. The reversal of 1102021105555 is 5555011202011.

It is not a de Polignac number, because 1102021105555 - 2³ = 1102021105547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 962100 + ... + 1769089.

It is an arithmetic number, because the mean of its divisors is an integer number (45130183560).

Almost surely, 2^{1102021105555} is an apocalyptic number.

1102021105555 is a deficient number, since it is larger than the sum of its proper divisors (342144768365).

1102021105555 is a wasteful number, since it uses less digits than its factorization.

1102021105555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731359.

The product of its (nonzero) digits is 2500, while the sum is 28.

Adding to 1102021105555 its reverse (5555011202011), we get a palindrome (6657032307566).

The spelling of 1102021105555 in words is "one trillion, one hundred two billion, twenty-one million, one hundred five thousand, five hundred fifty-five".