11020220454 has 16 divisors (see below), whose sum is σ = 23336937648. Its totient is φ = 3457324032.

The previous prime is 11020220447. The next prime is 11020220479. The reversal of 11020220454 is 45402202011.

It is a super-2 number, since 2×11020220454² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11020220454.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54020587 + ... + 54020790.

It is an arithmetic number, because the mean of its divisors is an integer number (1458558603).

Almost surely, 2^11020220454 is an apocalyptic number.

11020220454 is an abundant number, since it is smaller than the sum of its proper divisors (12316717194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11020220454 is a wasteful number, since it uses less digits than its factorization.

11020220454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108041399.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 11020220454 its reverse (45402202011), we get a palindrome (56422422465).

The spelling of 11020220454 in words is "eleven billion, twenty million, two hundred twenty thousand, four hundred fifty-four".